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Not in the standard library in general, but in the testing package it's the convention. There's testing.B, testing.M, testing.T, and testing.F, and *testing.TB.

https://pkg.go.dev/testing#pkg-types

Well that's a hard pass from me. I always knew go was quick to compile, I didn't know the lengths they were willing to go to achieve that!

Case in point: it's not TB, as you stated, but rather PB.

There's both, TestBase and ParallelBenchmark.

He's still right about that. Ridiculous naming.

Fortunately the rest of Go uses sensible names so I think it would be silly to avoid Go just because of that.

it's super common everywhere, also in third party libraries (`bson.M` is what exactly?). it's one of the reasons that makes go a very displeasing language to work with.

just golang things, I agree it doesn't make sense (as do many other things in the language)