It'd be fun to tease friends/guildies with it for a while but yeah, this type of code should not be found "ready-packed" for those immature people who'd eventually spam it in every lfg group, pug raid, etc. >:(
Try disabling Skada, I've noticed some odd fps drops as well lately in 25mans (can't test this at the moment though as my guild is on a raiding break for the holidays) and it's the only addon I use from your list.
Is it anyhow possible to move the default combattext? I'm not that experienced with LUA yet and looking at Blizzard_Combattext I saw a few potentials, but I can't work them out currently as I can't access WoW right now and I propably couldn't make it work anyway. :(