As most people who are veterans of this list will know very well by now, I am strongly against the "locking" of inactive Wikipedias. However, due to a recent increase in vandalism on inactive Wikipedias, I have decided to suggest a few more minor technical sanctions:
No, no, and no again! Spam filtering is not going to solve anything. I would have thought our wiki history has shown this time and again: You don't use technical means to fight vandalism (or spam or whatever)! You use technical means to make it easier for humans to fight vandalism.
The "correct" wiki way, of course, would be to make it easier for everyone to check the smaller wiki projects without having to check hundreds of pages. I've been saying this for years, and I'll say it again: RecentChanges, Watchlists and Newpages need to go inter-language!
E-mail notification comes close to this, because it allows for the notifications to reach a central place (his inbox) and doesn't require him to keep checking Watchlists and Newpages on hundreds of wikis. I would prefer if both were available so that everyone can choose whatever they find easiest, thereby making spam fighting as efficient as possible.
Timwi