This may or may not be effective when you come to the site:
Every once in a while we get hit hard by spammers and hackers, so we go into "lockdown mode" which means that all new users must as usual do the email activation thing as noted above, BUT then they are NOT automatically ok to post as normal - I have to approve their registration.
If they look like spammers they're deleted.
AND their ip address is banned. If the new registration is clearly ok, then I approve - if I'm not sure because the info supplied is insufficient or unclear, then they become a "Moderated User" - which means I have to then approve their posts before they are visible.
Needless to say I can't do this in minutes, I do it in batches, and I like to sleep - I'm on GMT+8 normally, so work out when I might be asleep and please be patient!
Sorry for the hassle, but if you saw the amount of time I waste on spammers you'd understand. This sucks, but it's better than the alternative.
Seek, and ye shall find.
Inspiring, Informing and Connecting travellers since 1997!