it was already pointed out they auto shut off
And I already pointed out that that's not a given.
which regulated by whats allowed to be sold
And I already pointed out that that's not correct. In fact most equipment that's sold does not do that.
anyone could put a non legal thing that feeds energy into the grid even if they jury rigged it themself.
Yes, people can do all kinds of things that are illegal. That doesn't mean we stop trying to prevent it.