Testing a mastodon theory.
(...so, if I post this now
so that it is nearer the top of the page, will hachyderm.io light up the dreamwidth entry on my profile the way it's supposed to?)
Update: Survey sez, "Yes!" If my theory is correct, then the cutoff is somewhere between 30656 and 192123 characters, except the byte numbers are probably bigger since we're in UTF-8 Land. A 65536-byte limit (on how much Mastodon will read before giving up) would not surprise me.