Secondly, "better MS office compatibility" is really, really a non-constructive and large comparative. For example, a good post would have been to list exactly what goes wrong, or what are the most annoying bugs.

Most of the time, the developers can use posts like those to pin-point exactly what is wrong and fix it quite swiftly. Because it's not only an open source project that strives for compatibility, but it's also made by benevolent humans who don't necessarily have a very definite document of what should be implemented and how. So telling them "hey guys, this should work like this, can you please fix it" is miles better than just saying "hey, your product sux, onlyoffice is better compat with word, bye".

I'm sorry if this somehow comes out a bit offensive, it is not, it's just that sometimes we tend to forget that those developers won't necessarily have the use cases we do, and hence will never optimize for them if we don't report them, and that just dismissing the whole software in favor of another without citing detailed analysis helps neither.