@primitivefunction I shared your icon(s) on Twitter
and they've been very
well received, and rightly so.
Heck yeah - attach a Zip file to a post and I'll be installing that sucker on one of my drawers a.s.a.p.!
You have to click on the little "attachments" orange link to the bottom-left of the Preview button when in Edit mode.
Just like when you attach photos. It'll accept Zip files, too.