Its that you vote for what you like , not randomly throwing money. Something that added value to your day.
For example, I follow and give likes to an account that posts daily about species of mushrooms that grow in forests in europe. You can imagine that this is a very small niche that this user is filling and its not getting enough likes (rightfully so ). But I like his/her posts even though it costs me my votes for almost no return.

Posted using Partiko Android