I admit to using AB when I have one or two toughies but whenever I log in, I see clues for various crosswords, most of which I don't do, and often find myself daring me to answer (in thought) then clicking to see if I guessed right and/or remembered correctly.
I find it both amazing and fascinating that some clues give answers that make me say "Hmm, I NEVER knew that!" So in that case, it's educational.
Like others, before asking for help, I do endeavour to finish the crossword before requesting and I've won a few times and you know what, whether ironic or not, the five or so I've won were completed totally without help.
But that doesn't mean to say that those who need help shouldn't have it, after all, those of us who can and do help, we get something back, a kind of good deed reward of satisfaction.
I think this site is very helpful to more people than probably ever submit anything. A friend of mines teenage daughter needed something answering and the URL for AB was one of those I gave her to research with. Needless to say, she managed to answer all she needed.
take care all
tc X