how some people on youtube gets 800 likes ??

They have a big audience, post popular videos or pay people to like their content. Or all of the above.

I only hit like if I want it added to my Like Playlist... Comedy usually gets in- that or something profound and educational -personally speaking

I often think that about Facebook pics:
The majority click because they are the persons friends
They have asked people to click like

I keep getting flagged for harassing the flat earthers. Do flags count😁

Promoting