I know this is a somewhat addictive hobby, and many people who perhaps only ever intended using the site once or twice eventually get hooked and start posting against other people's queries rather than just their own research, so adding-to and improving the forum and website knowledge base for everyone else.
Once I stumbled across the site 2 years ago I was regularly using it for my own researches for a year or so, including searching & learning from the forum's old threads, before I actually ventured to posting trying to help others. Even those who only post once or twice can add immensely to the site, especially if they're starting a line of research that hasnt been covered before, which then becomes a record for other later researchers to use.

So yes, I agree costs must be met, but please dont make it obligatory for all.
Thanks, Jeff.

A proud Dean ironworker now exiled in Middlesex.... so this website has been a Godsend