[alphapapa]

Why not use NoScript and/or RequestPolicy instead? That way, all such sites are blocked by default, and you can temporarily or permanently enable individual ones with a couple of clicks.

[dredmorbius]

I do, but they don't work on all sites in all situations.

I find communicating to VPO's that I'll block them for this shit, and advertising this fact and methods, might have some positive effect.

There are a small number of video providers for all the usual 80/20 rules. A half dozen or so nails virtually everything frequently used.

And very little video is even worth viewing.