How about
T?
Concerning the rules: it was indeed often like
Galadriel55 said, that for days and even weeks there were only two players (one of them being me

) but usually I only asked one letter per day, since I was always hoping more guessers would join us, and I'm not always at the computer. I don't think there was no point to it: the aim and the fun is to guess the quote with as few letters as possible. But I see what you mean: one and the same person asking for many letters in a quick succession... So I agree on your compromise,
Mithalwen.