We talk about quality. Of course, quality matters. The question is, how are you going to define the quality. Some people say DLIKE post is a zero effort post. Or, people can look the information on the internet by searching.
This is a social media. How do people consume content on social media?
Picture, video, words show up on the feed and you see it. You do not intend to see specific things on social media, but it is there. And you just take a look and find it interesting. DLIKE is all about sharing what you find useful and you think other people will like it. We all love to share on social media.
If you think too much about quality and do not make more content, you will not get the result as you expected. Quantity teaches you a lot of things.