diff --git a/notes b/notes
index 074af4432aebee88254a3de26acce135fbab90ab..a3099852e0d8adc4f56c854fcbd8d726f8a36d5c 100644
--- a/notes
+++ b/notes
@@ -580,3 +580,20 @@ Blanking that could be legitimate includes blanking all or part of a biography o
 * User and user talk page vandalism: Unwelcome, illegitimate edits to another person's user page may be considered vandalism. User pages are regarded as within the control of their respective users and generally should not be edited without permission of the user to whom they belong. See WP:UP#OWN. Related is Wikipedia:No personal attacks.
 
 * Vandalbots: A script or "robot" that attempts to vandalize or add spam to a mass of pages."
+
+This is not vandalism:
+- boldly editing
+- copyright violation
+- disruptive editing or stubbornness --> edit warring
+- edit summary omission
+- editing tests by experimenting users: "Such edits, while prohibited, are treated differently from vandalism"
+- harassment or personal attacks: "Personal attacks and harassment are not allowed. While some harassment is also vandalism, such as user page vandalism, or inserting a personal attack into an article, harassment in itself is not vandalism and should be handled differently."
+- Incorrect wiki markup and style
+- lack of understanding of the purpose of wikipedia: "editing it as if it were a different medium—such as a forum or blog—in a way that it appears as unproductive editing or borderline vandalism to experienced users."
+- misinformation, accidental
+- NPOV contraventions (Neutral point of view)
+- nonsense, accidental: "sometimes honest editors may not have expressed themselves correctly (e.g. there may be an error in the syntax, particularly for Wikipedians who use English as a second language)."
+- Policy and guideline pages, good-faith changes to: "If people misjudge consensus, it would not be considered vandalism;"
+- Reversion or removal of unencyclopedic material, or of edits covered under the biographies of living persons policy: "Even factually correct material may not belong on Wikipedia, and removing such content when it is not in line with Wikipedia's standards is not vandalism."
+- Deletion nominations: "Good-faith nominations of articles (or templates, non-article pages, etc) are not vandalism."
+
diff --git a/todo b/todo
index 49ff72c984d396fc081a9ceb191e07812590c5ef..f56665500ae834d8b8f19ec6cadd5130f69d2e83 100644
--- a/todo
+++ b/todo
@@ -4,6 +4,7 @@
   * add a special tag for filters targeting spam bots? (!!! important: do research on distinction/collaboration bots/filters)
   * consider all types of vandalism (https://en.wikipedia.org/wiki/Wikipedia:Vandalism#Types_of_vandalism) when refining the self assigned tags
   (Abuse of tags; Account creation, malicious; Avoidant vandalism; Blanking, illegitimate; Copyrighted material, repeated uploading of; Edit summary vandalism; Format vandalism; Gaming the system; Hidden vandalism; Hoaxing vandalism; Image vandalism; Link vandalism; Page creation, illegitimate; Page lengthening; Page-move vandalism; Silly vandalism; Sneaky vandalism; Spam external linking; Stockbroking vandalism; talk page vandalism; Template vandalism; User and user talk page vandalism; Vandalbots;)
+  * consider also other forms of (unintenionally) disruptive behaviour: boldly editing; copyright violation disruptive editing or stubbornness --> edit warring; edit summary omission; editing tests by experimenting users; harassment or personal attacks; Incorrect wiki markup and style; lack of understanding of the purpose of wikipedia; misinformation, accidental; NPOV contraventions (Neutral point of view); nonsense, accidental; Policy and guideline pages, good-faith changes to; Reversion or removal of unencyclopedic material, or of edits covered under the biographies of living persons policy; Deletion nominations;
   -----
   * classify in "vandalism"|"good_faith"|"biased_edits"|"misc" for now
   * syntactic vs semantic vs ? (ALL CAPS is syntactic)
@@ -16,7 +17,6 @@
 * add a README to github repo
 
 * Read these two pages
-https://en.wikipedia.org/wiki/Wikipedia:Vandalism
 https://en.wikipedia.org/wiki/Wikipedia:Vandalism_types
 https://en.wikipedia.org/wiki/Wikipedia:Administrator_intervention_against_vandalism
 https://en.wikipedia.org/wiki/Wikipedia:Disruptive_editing
@@ -39,8 +39,11 @@ https://en.wikipedia.org/wiki/Wikipedia:Counter-Vandalism_Unit
 https://en.wikipedia.org/wiki/Wikipedia:Counter-Vandalism_Unit/Academy
 https://en.wikipedia.org/wiki/Wikipedia:Cleaning_up_vandalism
 https://en.wikipedia.org/wiki/Category:Wikipedia_counter-vandalism_tools
+https://en.wikipedia.org/wiki/Vandalism_on_Wikipedia
+https://meta.wikimedia.org/wiki/Vandalbot
 
 https://en.wikipedia.org/wiki/Wikipedia:Assume_good_faith
+https://en.wikipedia.org/wiki/Wikipedia:Purpose
 
 * look at AbuseFilter extention code: how is a filter trigger logged?
 https://github.com/wikimedia/mediawiki-extensions-AbuseFilter/blob/master/includes/AbuseFilter.php
@@ -139,6 +142,10 @@ https://tools.wmflabs.org/ptwikis/Filters:enwiki:61
 https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/2009-03-23/Abuse_Filter
 https://en.wikipedia.org/wiki/Wikipedia:Edit_filter/Instructions
 
+## Vandalism
+
+https://en.wikipedia.org/wiki/Wikipedia:Vandalism
+
 ## Software
 
 https://www.mediawiki.org/wiki/Extension:AbuseFilter/Actions