That’s not true. With two dots, it can as plausibly be a typo of a single dot. In fact, in your GP post I was assuming that you hit the dot key a second time in

That’s not true. With two dots, it can as plausibly be a typo of a single dot. In fact, in your GP post I was assuming that you hit the dot key a second time instead of the space key by mistake, and ignored the resulting lack of auto-capitalization. (Granted, the fact that ellipses are usually separated by a space from what follows also played a role.)