Ref my post#11, I wasn't asking for the search facility to be removed from non-members. I had seen in an earlier post that non-members could not use it but I knew they could.
Most 'city' forums are searchable without registering and I often search a very large well known aviation forum for useful info but would not think of joining it even though I could.
With regard to the BHF there could be a situation where a young student looking for information might be advised to look on the forum. They could search and find their information without having to register etc. If they want to see a full size image then they do have to register, but this is common on most forums.
I use the BHF forum search almost every time I am on ... it's brilliant and lightning fast.
I have no definite views regarding this subject ... just commenting ...