[[mw:Manual:$wgRateLimits|$wgRateLimits]]
WONTFIX, because after restricting account creation it's no longer needed
What about setting this for users who are not translators? Recently we have a well known spammer from Canada who is operating from 216.66.0.0/16. This should slow him down. However, I do not know if it may effectively be set due to memory caching here. This is one of the reasons for my proposal. It's the same b..... b...... self censored. --[[kgh]] (talk) 21:45, 11 September 2012 (UTC)
Given that nobody answers... I think that in general setting some $wgRateLimits is certainly a good idea, but what configuration would you propose exactly? Such settings can't be changed too frequently so they can't be too strict but this can make them of little use; on the other hand, the situation is not dramatic so it would be a real pity to damage good users.
For specific vandals, especially if we know IP range and so on, AbuseFilter would surely be more effective, because spam and vandalism on this wiki are coming in waves and different (very easy) patterns (first the 6+6 bots and a few others, then the other userpage spambots, then the Selena Gomez fan, then this guy, in the last few days short bio userpage spammers, ...).