Security of Generad discussion forum

Have noticed alot of recent spam comments in asian characters (28 Nov, 2015).

Any extra measures this forum could take to keep them out (like Captcha forms and whatnot?)

 

Just getting annoying when trying to search for actual real postings. Probably get viagra postings or 'work from home and earn $5000 a week' postings in due time...

 

We pay Invision to block spam on this forum, but some of it gets through because blacklists take time to get updated.

 

For every spammer you see, there are another 100 that got blocked. It's ridiculous.

ahhh... truly 21st century problems. Thanks Greg.