What a high horse...
I've gotten plenty of bottles that have no DIS messages whatsoever. I've also gotten plenty of bottles that I've discarded because their messages were completely innappropriate!
We are just a group of people having fun... the same as you: having fun.
We aren't trying to poop your party. Why are you trying to ruin ours?
Perhaps you and I are seeing completely different messages, I haven't seen any that were "hijacked" and the topic changed by DISers. I have however, seen them changed by people not associated with our fun and friendly message board.
This is not a little kiddie board.. yes we like to have fun and sometimes it can get a bit Romper Room-ish (pardon us for cutting loose!

) Stay awhile... maybe you'll get a chance to see what a great group of people we have here!