Theres another one at
www.crewstart.com called crew rumors, it also looks like pprune but I think it has something to do with the software. So what if it does look like pprune!, if it works, use it.
Surely it can only be a good thing to have another BB on aviation, or do you do all your shopping in the same shop do you MESLAG?. I hope your loyalty is the same at the pub you drink in......there are other pubs that are just as good as the one you frequent I bet, and I think you might have a drink else where occasionally.
Oh I forgot to mention that the guy who runs the other BB has provided a link to this one and it was through his crewstart site that I and countless others stumbled on to pprune.
So go have a look, maybe even register and say hi.