Minecraft Support is experiencing extremely high volumes of requests right now and we're working 24/7 to get caught up. Do we have help? You bet, we just added forty new people to our team. Thanks for your patience, we're going as fast as we can to get them in and helping out!

Spread the word if possible its a game function melfunction, I don't think it was intended but having mobs spawn everywhere and anywhere with full lighting covering all blocks is not a joke its a problem that needs to be looked at as a serious issue with minecraft.