The point is that ranting about it here can't directly fix the problem. Sure, it can keep the topic of accessible/usable web development in people's minds, but

The point is that ranting about it here can't directly fix the problem. Sure, it can keep the topic of accessible/usable web development in people's minds, but it likely already is for most web developers using this site. Where a specific page/site is concerned, the person to complain to is the operator of the site hosting the relevant content - i.e., the person/group who can actually do something about it.