Are you seriously concluding that Airbnb doesn't care about their hosts because the didn't remind you a second time?!?
From my stand point it is you who aren't beeing very respectful to other hosts. Why haven't you ever left reviews? They are kind of important to you fellow hosts aren't they? Don't you find them useful when you screen and arrange booking your self?
Btw you've had a full 14 days to write this review. You should return the favour and begin to review guests. It's part of the concept and when you profit from something, you pitch in and do your part too and help other hosts too.