Nobody wants randos coming up to them and asking for something.
Most people would be less lonely if everyone had more practice at making non-transactional conversation.
Actively avoiding conversation still qualifies as "weirdo" behavior to most people.
Are you willfully ignoring people at bars, night clubs, supermarkets, etc?
It's obvious 99% of the time whether or not the conversation is in the wrong place and wrong time.
Scamming crools frequently do have good social skills, but of course there is that risk of being scammed if you talk to them.