What would be the point, or advantage to punters who use this forum?
UKP punters are only a small fraction of all UK punters. Of all the punters in the UK, we can be sure many BB, and then many of those will go on to see escorts who don't allow BB, without revealing their previous history. Then there are many (most?) escorts who BB with someone, whether it be a partner, "porn professional", or regulars without advertising the fact. The whole activity is a mash-up of BB, non-BB and the full range inbetween. Outing a handful of UKP punters who may, or may not, have indulged in BB on occasion will not alter the overall situation one iota. I suspect that it would just descend into a slagging match which would benefit no-one.
All we can do as individuals is take the precautions we each feel necessary for our own health, whilst recognising that there will always be risks involved regardless of how careful we are.