Looks like you were reported for posting nothing but those videos, which is typically a sign that someone is farming or that an account is actually a bot account. It is far from being an optimal way to engage with Hive.

Copy and pasting other people's work in, including videos, is very far from creating original content. It's understandable to share a video as part of a post on a particular topic but that video shouldn't be the only focus. It is a waste of your time as well as you can see with just posting videos you are not getting curated.