Anti-Queen, Anti-Drops

Ok, Im not sure if this is cheating, but I figure its just like walling up with depots against comps, its simply taking an advantage of your race's abilities. I've been doing this lately and its working quite nicely. What you do is, lets say you have your basic wall with depots, bunkers and tanks and some turrets I guess. What you could do is take spare CCs (if its BGH) or Engineering Bay / Barracks (For normal maps) and basically fly it and stop it OVER your tanks. What this does, it stops a human player from click on your tank, therefore, queens can not broodling your tank / parasite or anything. I also tried this on a BGH map for fun, I'll try to get a replay of it if I do it again, but if you make enough buildings (I prefer CCs cause they're big, have lots of hit points, and act as supply depots), I build them and fly them all over my base, therefore, my base is now unclickable (that means you dont know whats under those CCs, turrets and bunkers for all you know and its harder to know what exactly your dropping on!. Also, since you can' t click, you can't auto drop, you have to sit there making each dropship drop 1 guy at a time to unknown territory. If you hotkey your buildings (I prefer Starports), you should have no problem building units and using select all, you can easily get your wraiths / BCs to respond to you. In normal money maps, this can go a long way against the zerg. Or even protoss if you want to prevent webbings!

Yeah, you COULD destroy the building, but your going to sit there, (while taking damage and losing units), to destroy a barrack just so you can target ??? amounts of Tanks?