all Dave Bullmer has done is to buy a lot if not all Topic Records

Good grief!

Actually, Bulmer bought TRAILER, and not from Bill.
The problem is that he owns the rights and will not relinquish them, nor will he organise a proper, above-board re-release, rather than a CD-R dubbed from the vinyl. That's why Martin Carthy (and not just him) says he is 'bewildered' that Bulmer won't do anything about it, or let someone else do it. And it's why Topic put out Shining Bright, re-recordings of the songs by different artists.