Believe it or not, we have spam bots!

Even though this site is relatively big, it is not mainstream enough that I thought i would have to look for a spam filter, but I guess I do.  The Feedback sections have been getting immense amounts of spam, not from people that are trolls (I laugh at that, please continue(: ) but bots that spam me every 3 minutes.  I cannot find out what you guys want on the site if my inbox is full with spam enough that I miss suggestions and feedback!  So, what I am asking is that users of the site, if you have any knowledge of bots, please help me find a way to either block them, filter them, or if you can hack them to disable them, that would be great.  Thanks guys.  It really is sad that a free to use site that is up for the community is being attacked by these people who have nothing better to do than put up a bot to fill their inbox.  I can get trolling, yea its fun, but this is just unreasonable.

Here is some information on what the bot does:
-  sends me a filled out survey with random letters as the name, or something stupid like viagra and such.
-  puts random letters and then a HTML link to a website (i never follow duh lol)
-  repeats every 2-7 minutes
-  adapts when i change the url or the contents of the survey

Any help is appreciated!  Thanks guys, you really are the best.