An out of universe example. In interviews featuring both Tommy Wiseau and Greg Sestero, it's clear that Greg is fully aware that Tommy is kind of a nutjob, and that The Room is a hilariously awful movie. However, it seems like he's far too kind to actually say anything about it, and has remained friends with Wiseau for all these years, whereas many of the other actors have understandably not kept in touch with him. Power of friendship, right there.
And Tommy himself clearly loves his fans, even if he's not sure why they're laughing at his movie.