Try these post...hope it helps! Thing we all hate...spam!

1. http://www.oxwall.org/forum/topic/11284 = See # 5 on this list

2. http://www.oxwall.org/forum/topic/9015 = This talks about #5 from above list.

Wilson

Wilson +1

I have added profile question are you a robot? yes or no drop down on all required sign-ups, also agreements for tos on sign-up on all profile types. And an music section which is not required.

Oh and I also use the watchdog plugin, does seem to reduce spam from previous experience's.  But doesn't stop it all. Of course spam can never be stopped, but can be prevented from happening.

i use 1.7.1 version of the software and since then i have not had one single spambot register on my site, i dont use any antispam, i only use user approve

i used to have the are you a robot question they always answered yes or yes/no lol
but since the 1.7.1 update havent needed any thing to stop spam robots as they no longer register

So what type of question do you think I could use? As we use a paid for version of a theme and it's only capable with the latest versions of ox wall. Also the earlier versions of oxwall has many bugs.

You can try URL type of profile questions