I recently asked this question about gamma function, and Vincent law commented a link to another post which stated similar question.

There I found a link to MathOverflow post.

I visited there, and I came up with some questions about an answer (of Sankyu Kim), because the OP said some statements with doubt that his answer might be incorrect. Also I tried to find Euler- chi function which was mentioned in his answer on google, but I could only find Euler-legandre function, etc.

I checked ChinaHonkong(OP)'s recent activity and Sankyu's recent activity and found out that they haven't been active for years.

Obviously they seem not to reply to my comments.

What should I do? May I ask a new question about someone else's post?

If you want me to post the questions not on MO but Math SE please recommend me.

Thanks!