I'm starting to lose the will to live a little with this thread now.
;-))

As for the original post, I think we can all agree that there is sometimes an issue with some floor singers in certain folk clubs.

However, as TB and one or two others have pointed out, there is much more choice(In our area, anyway. We may be lucky)of different arrangements.
Some of the more rural clubs encourage floor singers more so than the city venues although there is a very good traditional, mostly unaccompanied, club "The World's Room" in Edinburgh which caters for the die hard traditional song afficianodos.
Of course, the regular folk clubs also feature this in their programmes but also a much wider variety of "Folky"(using the term loosely) music.

Also, there is quite a large informal session scene where we are with all variety of opportunities and levels. Many singers(and musicians) prefer these to formal clubs.

In fact, to restrict the discussion to folk clubs is probably not that informative. These days, there isn't really a typical folk club.
Certainly much of what happens therein isn't for the purists, in many cases, but a lot of what happens in the wider field often is.