I think you need to understand that they have a life outside of make graphics.THEY DON'T SIT ON THEIR COMPUTER ALL DAY. You need to respect their life outside of the internet.
And I would hardly call these people "followers." These are people who just want graphics to grow their youtube channel.
Don't take this as hate because I have been in you shoes before. I've waited for at least a month on some art work from some other person then they closed the shop. I had to realize that their busy with their personal life.
They are tons more shops out on the forums You could have simply go elsewere to get some art.