Paul bdi-emc@ntlworld.com
One possible solution is to use password protection [...]
It depends. If you issue username/password to individuals, it works but is no longer a wiki in my opinion. If you set one username/password, it doesn't stop spammers, based on past experience. I was using a simple perl wiki (not kwiki - maybe usemod), but I forget which one, it wasn't important enough to me to back it up and my site on www.affs.org.uk was crippled without warning (which seems entirely personal, as Marc who left before still has one) so I can't check now.
The ALUG wiki is using phpwiki 1.2 or so, still. Migration may be a good idea if people want to keep it, but I need help for that too.
Thanks,