Because EVERYONE I know has problems with Mojave.
There'll probably never be another version of macOS as stable as 10.6.8 was
everyone you know? how many people is that? 5? 50,000? it's absurb to think you speak for all mac users based on what 5 friends think. even these forums (entertaining as they are) are not definitive; most macusers (most computer users), don't spend time on forums like this; they have lives.
it's ok to have an opinion, but probably also good to admit that it is just an opinion, based on (ideally) your experiences; you don't speak for everyone.