I don't either!
Electrolysis is my go-to rust removal method. In this case, it'd fizz the paint off too; but I suspect I'd be left with a fairly deeply pitted surface, once all the cRust was removed. When that happens, it can be fun to use files and abrasives to smooth it back out, like I did on the pair of Kraeuter pliers off to the right.
That's not the best example, but I had the photo handy. I recently got a "who made these side cutters?" email from my cousin, who was admiring some Kraeuter cutters he'd inherited. He said, "I've admired this tool that I have here. And it's in really good shape. Almost looks unused. It's still sitting on the table in front of me. Quality is amazing. The tolerances kinda blow mind." I find myself wanting to nurture his appreciation and send some more tools his way.
Speaking of tired old pliers, I pulled this pair out of the scrap bin thirty seconds after they'd been tossed in. (Along with a nice little pair of Craftsman "Channellocks" that I set out on the shelf for someone to buy). At first I thought it was weird that they'd used a tubular rivet in the pivot, but then I realized the pin was just missing. Box jointed pliers always seem special and this pair definitely has a hand-forged appearance. It will be fun to replace the pin and forge them back into shape. Poor little pliers.