does stickpage let people post with "Stykz?

No it does not let you post with stykz. It lets you post with shit.

Actually, I don't even know the slightest bit what you are talking about.

Yes you can post Stykz animations, but we do not at the moment have a section for that program specifically. You will need to export your animation as an animated ".gif" file.

You should probably post your Stykz animations in the pivot section, but you should make it clear in your post that your animation was done in stykz, a program similar to, but not the same as pivot.