RE: slider.mysteemit.xyz service for generating JPEG or GIF to promote/announce your blog posts
I think this is a good idea. For new readers: What I get from this (with a partial test) is that if you have posts with pictures, you can scan the blockchain usng t3ran13's site to make GIFs etc. It seems pretty cool. You can post stuff and then go back and pick from what you did. If you don't want to hold files yourself, that is.