For some reason, Special:Lonelypages doesn't get filtered for disambiguation pages. Those are not SUPPOSED to have links to them, so it's unfair to list them. But they're listed.
Last update: It turns out that a shared project already exists for these: Wikipedia:Links to disambiguating pages. So I'll be moving my collection into the common pool.... eventually.
S:LP versions checked (for trying to detect the cycle):
These are the disambig pages I found (starting from the beginning):