Has anyone experience with DoSing spammers by deliberately flooding them with incorrect email addresses?

I mean, it should be easily possible to put new (fake) email addreses up on web pages in a huge scale (actually this is an old idea of deterring spammers). Any spammer grabbing them will have his database grow somewhat out of control.

At some point they’ll probably notice that you have been providing them with bad data, and maybe drop all of your domains’ email addresses harvested?

Or do they just not care?