I didn't know there was such an option ...
if so, we should have been using it since day one ...
as VERY few people actually edit.
I've been protecting pages ...
which means then only those given sysops status can edit.
which would also work, as there are only a few folks who
do edit and those I have already given sysops status.
so good.
but you do realize spammers have bots that make up
User names and do log in to do their spamming?