I've improved the "Add Image" page so that IlohaBlog can now automatically create thumbnails and scale images. You can also upload larger images now, as long as the scaled version is less than the size limit. Here's an example post.
A word on "nofollow" (which Google suggested as a solution to comment spam). Joining the bandwagon, IlohaBlog will insert "nofollow" tags to links in comments, although only logged in members can post links. In general, restrictions on comment posting seem to have eliminated comment spamming on IlohaBlog, except for...
Trackback spamming. I've noticed a few trackback spams, but that loophole has now been plugged, and the same non-member restrictions are applied to trackbacks (i.e. no links anywhere, and IPs are shown). The originating blog's URL is inserted at the bottom of the comment text, so you can still get to it if you really want to. I decided not to just use nofollow and hope they'll stop, because I have a feeling that spammers will indescriminately ping trackbacks anyway.