Seen on enwiki: Huggle automatically reports users to WP:AIV. This only happens if the user has recently received a final warning, but the definition of "recent" needs to be differentiated.
- Registered users who have received a "final warning" for repeated vandalism can probably even be reported if they resume their activity months later.
- IP editors may not be the same person and usually need to have received a very recent final warning (say, not older than 12 hours, to be on the safe side).
Automatic reports seem to have been implemented in a "report if in doubt" way. I'd argue that this is possibly the wrong philosophy, and that Huggle should restrict automatic reporting to clear cases, which WP:AIV is for.