Originally Posted by isucyfan 
I would say that responding to a PM is courteous, but not required. I wouldn't worry about your PMs unnecessarily clogging the system. It's just a few electrons. . . .
Credits are earned by being active on the site, i.e. logging in, posting, etc. You can use those credits to bet on CyBookie events. . . .
isucyfan, thank you much for the information. Guess I'll continue as I have been (but will respond to PMs; I want to be as courteous as possible to my fellow Cyclone fans). I see that I can ignore Credits, then (I don't bet -- ever).
Very helpful, isucyfan.
