"The whole fuss made about Guests was that many folk did not know who they were and this fact mattered to them. "

I don't actually think that is correct. The main issue, as I understnad it, has been that, when people post as GUEST without any kind of handle, it is impossible to know from post to post whether it is the same the same unnamed GUEST or a different one; and that makes for confusion and needless irritation in a discussion thread.

I haven't got the faintest idea who most Mudcatters are, in the big world. If they prefer to conceal their name and identity behind a pseudonym, either as a GUEST or as a member, that is of course their right. There are plenty of excellent reasons for doing that. Even if there weren't, it would still be their right to choose to do so. But we should never deliberately use a name under which anyone else has posted - and that is essentially what unnamed GUESTS are doing.