There are ways to have a sort of long posts with multiple images with steepshop, however the main limitation is the 2048ish characters limit... And you won't be able to edit less you want to remove the extra tags hehe.

Well the secret is to write and format your post say in steemit, then copy the raw text along HTML/Markdown codes into the steepshot's text box and use the image slot for uploading the preview pic :)

About the extra tags, yeah I've noticed it isn't giving much benefit or at least not as much as some months ago...not sure why but well