@Zapipedia-WMF reported that she was assigned with a mentee who has 9 edits, mostly reverted. The only message they have on their talk page is “Stop vandalizing”.
@Dyolf77_WMF experienced the same thing.
As discussed during today's Ambassadors's meeting, these kinds of users shouldn't have been suggested for praise. Mentors may find it disappointing and time-costly to have newcomers who aren't at all praiseworthy being suggested.
We should add the revert metric to the personal praise mentor's settings so that mentors can filter out these users.
The default number is to be discussed, but we can reasonably start with 3, as one revert doesn't characterize vandalism (good faith edits that missed something), and two reverts can just be the natural reaction to the first reverted edit. 3 means either edit war, or just vandalism.