Direct Messages on Twitter are more like “I’ll befriend you, send me some marketing message”. I reckon it would be around the 50% mark, of Twitter users who have auto DM’s setup for when they get a new follower. And heck, it works. I actually wrote a post on this quite some time ago : http://www.pyrogenicmedia.com/using-direct-messages-effectively/. It basically involved having a snowball effect, by having people send an @ message to you. Anyway, read it if you are interested, it still does work, but to a lesser effect.
Anyway I was looking at my Twitter account today, And I had some ludicrous amount of direct messages. Several hundred infact. For some reason, Twitter doesn’t give you an option to delete them all at once, And I wasn’t about to sit here and go through one by one, removing them all. (As a side note, I was also too lazy to program a tool to do it 
).
So I found this : http://dcortesi.com/tools/dm-deleter/
It is a small bookmarklet that can delete all your sent and received DM’s. Aswell as that it can save any messages from certain users (If you want to keep one’s from your real friends etc). So quite nifty. If you are in the need for some direct message whacking, give it a go 
Wow, thanks for this share! I just wiped 100s of messages – looks nice to have the inbox down to ZERO!
.-= Mario´s last blog ..Post Immortality Manifesto =-.