| ive seen factories on influence spots and i play on tough (not that tough is anything crazy)|
Well, Tough is supposed to be the smartest the AI gets before they start adding Econ bonuses.
the thing is, factories on influence bonus tiles isn't really a bad, thing, if the planet is far enough from the front lines, and manufacturing is more important than the minor benefit of an influence bonus tile. I can see myself putting something else on a influence tile, at least temporarily.
Now, there is not much excuse for an embassy on a Manufacturing bonus tile, unless the AI is really trying to defend against your ISB 'attacks'.