And it's not just start-ups. If you contribute to LibreOffice, a lot of what is being said in threads under release announcement can make you feel depresssed.
I stopped reading them and just contribute anyways. Just because everyone can have an opinion doesn't mean you have to read all of them.
LibreOffice isn't bad now. I've been using it and its predecessors all the way back to the OpenOffice era. It was originally terrible, but now, it's a good alternative to Microsoft Word. I haven't bought a Microsoft Office product since Word 97.
I stopped reading them and just contribute anyways. Just because everyone can have an opinion doesn't mean you have to read all of them.