I never understand complaining about ships on kink memes. The whole thing is that you can prompt literally whatever you want AND no one knows it's you. If you're really into Matt/Vladimir you could post 700 Matt/Vladimir prompts if you wanted and a) nobody would know it was you and b) it would give your ship presence and show other (maybe minor) shippers that this is something you would like to read more of.

I am personally dismayed at the lack of mentally ill Matt prompts and fills because it is extremely canon in the comics. Maybe most of my prompts never get filled but neither are most prompts on kink memes. I still prompt anyway and track my threads because that's the whole point and I can't get mad that not everyone has seen the light yet about my awesome ideas.