What the hell is going on with the AH and "Usable Only" filter?

Why is it STILL the case that items show as useable, but then when I go to equip the item, I find that it’s 80 only?

The item on the AH says (for example) 70, but then when I click in to see all the individual items they’re all 80.

Where is the “70” coming from in the first place? This was happening like, 2 months ago. And I complained then. Forgot about it, and I just lost 1200g. Like, wtf?

The filter can see that an item might be usable or the appearance uncollected at one ilvl, but then when you go to call up that item, the AH will pull up all versions of that item which might include versions that didn’t fit the original filter you used.

It seems to be a tricky UI problem to solve to figure out how exactly to place the guardrails to prevent accidents from happening?

Hey, how dare you be so hateful towards this small indie company!