According to Simetrical:
"It is now possible for wikis to require a certain number of edits, as well
as a certain registration time period, for users to become autoconfirmed.
Thus, for instance, accounts that have existed for several weeks but have
made fewer than five edits might be prevented from moving pages or so on. If
a particular wiki would like this enabled for them, it can file a bug report
after community agreement."
I think we should enable this with a threshold of 10 edits. 10 edits is
reasonable for a vandal to go through the whole warning system and get
blocked, while at the same time not too much so as to discourage new
contributors.
--Mets501