MediaWiki sends email notification for bot edits when a user sets "E-mail me when a page on my watchlist is changed", which can flood users when a bot is active on those pages. Email notification for bot edits should be disabled by default with a user preference override, similar to minor edits with $wgEnotifMinorEdits ( http://www.mediawiki.org/wiki/Manual:%24wgEnotifMinorEdits#Details ).
Version: unspecified
Severity: enhancement