[ptman]

I would hope that people would spend their effort improving open systems instead of closed ones. The same effort could be spent improving matrix (via a terminal client if one of the existing ones don't suit or improving the slack bridge or implementing features slack has and matrix is missing)

[btschaegg]

While I would generally agree with the idea, I think it's also important to see that people aren't always in the position to choose said open systems.

I presume most of the non-commercial projects posted on HN are started to scratch an itch of the autor, which might as well be that they're stuck with a closed system that sucks. Trying to improve that situation somewhat seems sensible to me.