As a web designer for some years in the UK I do sympathise with your comments.
But to be fair the WA site does list what the solution does and does not do.
I am a fairly basic user of PHPand mysql and IMHO the most useful thing that WA has is their support.
How many other organisations will reply within 24 hours?
I had a problem that was driving me insane after three days WA support called me from the US as a time of my choosing and talked me through diagnosis. After 15 minutes It was proved that my brain cell had gone on holiday;-)
As a user of Dreamweaver, Photoshop, Fireworks and Xara to name a few I have to say the WA support beats them all.