Gosh after reading the serious stuff some of you guys are dealing with, I hesitate to post mine, but maybe a few others have similar situations and reading here they'll not feel as isolated.

I have severe hearing loss -- and while it doesn't hamper me much in face-to-face contact with people (lip reading is a life skill), there have been games that I wasn't able to play because people expected everyone in groups/raids to live chat with mic. Even with volume maxed, it's next to impossible for me to catch everything being said, and when multiple people are trying to talk it flusters and distracts me to the point of a panic attack.

I'm glad most folks in FF seem to be okay with text chat for the majority of content. I don't bother with the highest-end (savage) stuff because I'd imagine communicating verbally is pretty commonplace for the upper tier raiders... and I'm fine with that limitation.