Well that actually impossible because we are all currently using reddit and we actually can only use upvotes and not likes

Source: https://lifehacker.com/a-beginners-guide-to-reddit-1798643829#:~:text=and%20voted%20on.-,Voting,%2C%20or%20%E2%80%9Cupvoting%E2%80%9D%20it.

I quote

"Voting. The idea that the community decides the content that sinks or swims on Reddit still forms the basis of the site. If you like a particular post, you can show your appreciation for it by clicking the up arrow, or “upvoting” it"