Why do some players buying 1000+ exalts? What do they do with it?

I don't really play poe, but I know 100 exalt will you get gears needed to clear all contents.

Sell for money on other sites

Why do some players buying.

that or metacrafting

Typical quality Scherzer post.

agreed

Rolling gfg items that some of us never see unless mirrored

no

You don't need to invest anything to clear all content. Otherwise people wouldn't do it in ssf.
But if you want to know why some people buy something, ask them.

git gud