When loading the game there's a few hundred lines of console spam.
Here is a small snip of it: http://pastebin.com/fhWCpAfP

Also whenever someone hits an entity it prints a line with the damage done and some other junk.

This should be pruned or be made optional as its quite worthless and most people don't even need this information.

Okay, odd, I thought I'd removed that before release...
Anyway, I've gone through and pruned as much as I could find, so this should be resolved in the next release (Hopefully tonight)
Sorry about that

Can you upload what you have of 1.2.3 if its working? Removing the spam from a server of ~30 people would be great :P