Why are inactive playerworlds on classic list?

[Crono]

As the title says, why are servers like Graal Bomy Lands and Shaded Legend on the server list? They have almost no playerbase and simply sit there collecting dust.

They may be in development but if there is no playerbase, I believe the server should just turn into a private dev server. It would make the classic list seem less crowded and just tidy things up.

Current list of inactive servers according to me:

Delteria-

It's under heavy development on a seperate dev server. This server has no one left, even when they host spar tournies it only has about 20-25 players on, that's pathetic.

Shaded Legend-

This server has been in development for years and has always been on the bottom of the server list. It may be in development today but I'm sure that that's on a seperate dev server.

Graal Bomy Lands-

We all know what happened there.