Are epilogues that tie up all your loose ends a bit of a cop out? I'm working on something now, it's basically about a young woman who beats people up for fun and profit but I've got a sub-plot with her mum and dad having a domestic that will need some sort of resolution.
I'd avoid it, personally, and find some way to hint at the subplot's outcome within the main story. Then again, it's all on the strength of the storytelling. If you can do an info epilogue and keep it compelling, readers won't mind, even if fancy writers peg you for it. If it becomes an info-dump though, then it's gonna turn off readers.