Yes. When you receive a connection request, there is an option next to "accept" which allows you to block this user from contacting you again. You can also decide to block someone you've already accepted and you will not receive any new connection requests from them.
Weeee, you found me!
I'm your buddy Bottie, I was hiding behind the scenes, but now that you've found me I'd be happy to tell you what I'm doing.
I just wrote a few fun facts about IADB
Would you like to take a look?
Click here to check them out. I hope it will cause involuntary audible response.