I know it can be a frustrating site but your jumping to a few conclusions there.
Conclusions drawn by testing the water. You try contacting profiles on AW and see what you get back.
Out of 18 messages I sent over the weekend I got one reply, five were read within a day and a half, the rest still haven't been read. Seven have disappeared off the site including the one that did reply.
The only way you get a noticeably better return rate is if you confine enquiries to profiles that have been there for over a year.
95% is a guess of course. I was thinking it was 9 out of ten, but recent messages I have sent show it's actually worst than that. I started off just sending the odd message, but after getting so many non-responses I cast the net a bit wider, and this is what I'm finding.
I've noticed that about a quarter of new profiles disappear again within about three days. Using the criteria I search on anyway.