There's always been negativity on this forum but I don't know if complaints about missing rewards should be dumped into that category. The DS TB was full of bugs and because of that was a huge irritation to lots of people in lots of guilds. Then on top of all that irritation, people didn't get anything for it.
If someone comes on once and posts that about a bug or lack of rewards, it's valid it's only when they post multiple times even after it has been acknowledges that I think it is called complaining.