If a ComputerCraft computer is labeled, it opens up http://ftb.gamepedia.com/<computerLabel> through the Lexica Botania instead of http://ftb.gamepedia.com/Computer, where it should be. (Although http://computercraft.info/wiki/Computer would be a more 'official' source) I would guess that this is related to the same property that allows WAILA to show the computer label, instead of Computer on it, although i'm not sure.

Well, it uses what you get through pick block and gets the stack's name, so this will naturally happen. Closing as a non issue I guess.