But maybe not come in with an "I need to take back the compiler from evil compiler writers" attitude.
They're the ones who started this hostility in the first place.
If even someone like Linus Torvalds can't get them to change their ways, what chances are there for anyone else?
P.S. "All they do is worship The Holy Standard. They follow the rules blindly without ever thinking whether it makes sense" — well, no. Who do you think writes The Holy Standard? Those compiler folks actually comprise quite a number of the members of JTC1/SC22/WG14, and they are also the ones who actually get to implement that standard. So to quote JeanHeyd Meneide of thephd.dev, "As much as I would not like this to be the case, users – me, you and every other person not hashing out the bits ‘n’ bytes of your Frequently Used Compiler — get exactly one label in this situation: bottom bitch".
"How dare these free software developers not do exactly what I want."
Talk about being entitled. If you can't manage to communicate you ideas in a way that will convince others to do the work you want to see done then you need to either pay (and find someone willing to do the work for payment) or do the work yourself.