Blocking bots
 

Bot Block
 

tools > options > Filters > hosts ... add *IP address removed* .... apply ... ok .... done. :D

needs to be a way to right click and block hosts in the search results. i see more and more spammers on the gnet.

Yes, this would be very useful. Far more so than "Bitzi web lookup" in the 2.5 betas. Although there might be a bit of confusion between browse host and block host for the P2P noobs, it's still well worth it.

Filtering
 

I've found that by filtering keywords like full-downloader, full-installer, url and removing the filetypes html, htm, and xml the amount of spam crap that I get returned on search results has been nearly eliminated ... food for the noodle. :p

I've been adding hosts and keywords to the filter list like mad, but I'm still getting loads of spam results. Perhaps it's time for a Gnutella-wide filter cache, rather like the host caches, to filter out spammers, scammers and bots. That way, each time you open your client, it would update the filter host list automatically and block'em all. Though, obviously, how this list would be managed and what criteria would be applied to add to it is a more difficult question.

Alternatively, I've thought of sending a list of spammer IPs to Bush identifying them as Al Quaeda members :D