Also on a note about clans and tells and IC/OOC...technically anything that happens in the game or is said by the game etcetera is 'in-character'. Accepting something said, even on a clan or a tell marked OOC, -as- OOC is by mutual agreement between the two players. It's one of the reasons I really dislike being in a lot of high-traffic OOC clans and/or rarely talk in them. I like to settle my unicorns in-character.
I used to use 7 and enjoyed it quite a bit. I have 10 on my bigger for-games laptop, and while it's not bad, the UI feels hella clunky and unicorns. Stuff's really hard to find. I kinda feel like 10 was made for tablets and unicorns and it feels like they tried to port it to PC, rather than making a version of 10 solely for PC or whatever, if that makes sense. I haven't noticed anything terrible about it, though.