As for the "T-word" I actually asked this question to several self-identified transexuals (friends of a friend) at a party during pride weekend and they were split about 50/50 - half of them couldn't care less about any slur and the other half thought it was incredibly offensive. It wouldn't surprise me if the same situation applied to the gays.
I don't have the energy, patience, nor time to be offended by any slur
but I'm not going to dictate to others what they should or shouldn't be offended by. I personally try not to use any of the minority "slurs" and I try to avoid those that do regularly. For starters, it strikes me as really tacky. (The only times I can ever recall I have was f***** once in reference to my drunk self at my friend's house and n***** from two rap songs I used to listen to a lot

)
The whole "Reclaim the Slur of Your Minority for Power" trend I'm hearing a lot now makes me cringe, as the context behind it isn't going away. I don't buy the constant excuse "it's only as powerful as the power you give the word". The power behind the slur is always there and will always be negative, IMO.