Well, sort of. I'm using a SQL system to reduce comment spam, which is why comment entry is really slow - each entry is checked with a regular expression against a table of know keywords/sites. It's slow, but it works. After the blacklist issue, I updated the list, so there were more entries, and it turns out that it's a timeout issue - the command is taking too long to execute and there's no exception shown. There are two options:
1. Recompile the dotText source, adding in longer timeouts for comment insertion.
2. The immediate solution, which is to remove entries from the blacklist. Yeah, it's a hack, but I can add them back in.
So, for those hosting their blogs here, if you start getting comment spam again, then don't bother to email me as I know about it. I'll sort the immediate ones out, and when I have time (mid 2006 by the look of it) I'll modify the source.