I face two sources of frustration on SE.
The one are the anonymous, unexplained downvotes. They aren't fun, and from experience, commenting to ask for an explanation just adds to the frustration, as you never get a reply.
The other are the accepted answers that you are convinced are wrong, though they keep getting votes. Claiming that they are wrong also has no effect as your post goes unnoticed or is not believed, an accepted answer often masking others.
[I am not claiming that I am always right to think an answer wrong - I may err too with significant probability. I am just saying that this is an uncomfortable situation.]
Have you found a way to cope with that ? (I am not looking for a way to counteract these situations, rather to accept misfortune :)