In reply to All:
I came across the bolted block when doing the usual solo circuit at Dewerstone Yesterday.
The bolted block is infact the main black on the airy belay of central groove.
The block was consider to have been loose and dangerous to belay on.
I have used the block to belay on and have hauled people on this block, ofcourse backed up. In my opinoin the block was "Ok".
I have used the block as a perch to have some lunch when soloing and many a time have moved my whole weight on it.
My view is that it is good it has been bolted. The block is perched on a ledge, and is pinned at the top with a constriction of the crag (i.e. it doesnt move), however removing the block could have destabilized this section of belay or destroyed many of the crucial small flake holds on 'Scimitar'.
Removing the rock would have made the belay more accessable to hidden nut and cams slots, and would have made scimitar harder, and more interesting!
It seems to me, that since this block has been used to belay on so may times (and it not having fallen off yet), it now having a bolt through it and drilled to the crag, it is probably even safer.
The warnings are simple and you should always trust your own judgement.
Cheers
Tom Bunn
www.rustypeg.co.uk