The author of the comment addressed to me
This may be better suited to a geology or physics site.
says they didn't vote to close, but the comment seems to have none-the-less triggered some reflexive, silent close-voters.
I feel that the question Moon's South Pole-Aitken basin mass anomaly, how to reconcile “isostatic equilibrium” with “heavy metal not sinking”? is certainly on-topic and I have explained my choice of sites to ask it as follows:
..."may be better on" is absolutely not the same as off-topic. This question is 100% on-topic here. I have already posted a link to this and the previous linked question in What on Earth?. Since I am referencing an answer and a question in this site, and a paper about the Moon, based on two sets of lunar satellite data, I decided that the question's audience (future readers of the answers) is more likely to be here.
Question: Is this question truly off-topic? Or are people just (over) reacting to the "may be better suited" comment?