You only get to the right to manage your own time not other peoples

I only do it to piss off poor time managers off.

What gives me the right to manage your time?

The fact that I CAN. That my vehicle is wide enough to block both lanes and force the merging to happen behind me while I roll along at low speed soaking up the gaps in stop/go traffic and using less fuel and brake wear than gas/brake/gas/brake/gas/brake/honk.

You're welcome, OP. Sit there and fucking seethe in your cage; you can't do anything about it short of dragging me out of the vehicle and forcing it to the roadside. But since my doors lock with more force than you can exert and you can't make me open the window. you'll have to cope.

Of course, if I'm on the motorbike and see this happening, I just shoot past. Unless someone is raging and seething in their rage cage. Then I'll sit by their window and idle while I stretch my shoulders and knees for a while.