Reviving Old social media accounts vs creating new ones?

So a few years back (2015) I created social media accounts for my website, just to reserve username matching with my domain name. I haven’t posted anything on social media except for a few random posts in 2015.

Now I actually started blogging last year and I am still sharing posts from my personal account not the ones that I created above. So is it a good idea to post from the account which was inactive for about 5 years or create new ones for them?

Social media accounts are on: Reddit, Insta, Twitter

You can do anything with social media accounts because they are under your control.
But you can’t transfer all of your existing fans/followers if create a new one.

Sorry for half info, I don’t want to transfer followers and I don’t have any!