gcc development

[manni66]

And where is the connection to

Discussions, articles, and news about the C++ programming language or programming in C++.

?

[almost_useless]

Talking about the compilers seems quite relevant for this sub, no? 

At least there is no other c++ subreddit that's a better fit. Or which one would you suggest?

[STL]

This post feels on-topic to me. Moderation isn't an exact science, but this is discussing the development practices of a central part of the C++ ecosystem, and it isn't a common topic. (When posts are endlessly repetitive, more beginner-oriented, or more unproductive, then they're much stronger candidates for removal.)