How do they find me?

I have three niche sites and on a daily basis have to delete up to 20 new members every day who are there to use my sites as back links or advertise their crap! (which I guess is back linking as well) Does anyone else have this problem? Is there anything you can do about it? I know they are not finding me in a google search, should I delete my fb pages? My website listings on this site? Suggestions Please I spent too much time moderating this stuff.

You've probably been indexed by a search engine, which is how spammers find all Dolphin sites.  There are a few ways to remedy the situation:

1. require all profiles to be activated by an administrator (Administration -> Settings -> Moderation Settings);
2. mess around with the anti-spam tools in the administration panel (be careful when doing this) (Administration -> Tools -> Antispam Tools);
3. block certain countries/regions from accessing your site (http://www.boonex.com/forums/topic/How-To-Block-The-Entire-Planet-From-Joining-Your-Site-well-almost.htm).

That's not how all spammers find Dolphin. Some find them through companies like ShrinkTheWeb

 How would an anti-spam tool stop people from joining? What do you change? Thx

Check this:

http://www.boonex.com/forums/#topic/China-is-invading-help-me-with-form-field-validation.htm

 Does anyone NOT have this problem, lol. I'll use the same answer I always do: If you're on a VPS or dedicated server slap mod_security on it and block "href", problem solved.

they have it but like I have proven, it's really not usable with the current dolphin configurations.

Ok looked at anti-spam tools and now I see where your coming from Nathan. Now my problem is understanding how to use properly. Say I want to block 163.com how would I do this? Is there a tutorial? Wait did I really ask that question, need more coffee.

Thanks

 This has almost totally blocked all spammers. It works, there are links to my site to test.

http://www.boonex.com/forums/?action=goto&my_threads=1#topic/Clean-and-Tweak-My-Site-.htm