No, I guess not really. I could just post without pictures, I suppose. I have what looks like 1 MB of storage and I've used 500 kB already, not including what I deleted a while back. That gives me a handful of pics left that I can upload, depending on the resolution.I'm looking into this and I'll let you know what I figure out but I'm curious, is there a need to do this?
Try this....
Settings > My settings > Miscellaneous > Attachments
I have neither checkboxes nor a delete button. I have only a "show thumbnails" button at the bottom.