They may also be people who don't know English. They might not know how to form a sentence! I'm just looking for a positive reason. But I can guess, I'm wrong! 😉
These are definitely those who are bots or people who join thinking that they can get zaps from Stackers for any 'haha, heehee, o, oo, ah, ou, or any sound that even animals can articulate! We have power to downzap and we should use it whenever we see such Stackers! Just downzap after looking at the profile of a stacker.