Thanks to everybody who replied.
GR seems very inconsistent in what it charges people - I just paid £10 a year which is OK, but then I hear someone else only gets 6 months for that, someone else £7 for a year - what's going on?
I'm beginning to think that they're equally inconsistent in their treatment of lapsed members. I've definitely had replies from them, but they aren't allowed to view my tree - doesn't matter, I just describe the connections to them. I wonder if some lapsed members are allowed to send just one reply (including a tree opening) and then barred from more replies unless they rejoin?
If they can see all your messages, I'm tempted to go for what you're warned never to do - reveal an email address. I wouldn't do that on a public site - not even Rootschat which anyway allows simple PM-ing - but I see no problem putting it in a private message. I get so much spam in my Hotmail and Yahoo that a little more wouldn't make much difference.
A lot of sites warn you about revealing your email but in the case of commercial sites like GR they may be bothered not so much about your safety but about getting bypassed and losing subscriptions. Some sites even block messages containing the tell-tale "@". I hope those I choose to contact in this way understand how to interpret "at yahoo dot co dot uk"
In fairness, when GR was started they probably didn't realise they'd have members with such huge trees - witness the print facility, which can't work except for very small trees. I've seen people on there with rellies in 5 figures! I suppose these are the fabled name collectors, certainly some of them include people who are not related to them at all, just across marriages. C'mon, guys, I could put the Queen of England in my tree if I went across enough marriages, but I doubt if I'd get permission.....
On the other points, I find that GR hot matches are better than they used to be in that they no longer give you people with very common names - I got very fed up with matches to William Davies or Mary Morris who was born the same year miles away - sometimes in Australia. I don't get them too often (about monthly) and if I get fifty, there'll be ten worth replying to and two will reply. I think you can choose how often you get them, CMIIR.
I would like them to give me matches with those names, though, provided more details match. I'm not interested in Thomas Morris born 1823. I'd be very interested in anyone who's got Thomas Morris born circa 1823 in Llangynog!
Oh, look, I got a request in! I wish there was a way we could do Hot Matches on Rootschat. (Could everyone scan the following list of 2000 names and see if we've anyone in common?? No, I didn't think so. Computers have their uses.)
Thanks again to everyone, Chris