Tbh I'd rather not know anything about my favorite mangaka's personal lives outside of big events they want to share (eg marriage, child, etc), and mostly only follow them for volume and chapter release info (or extra minicomics and drawings, but then I'm like "can you please add these to the volume release too. Twitter isn't really built for proper archival purposes"). Cause like, it's too easy to start seeing them as an extension of what they write/a character, especially in the case of semiautobiographical manga like this. And the way we treat characters is different from human beings. Gotta fight the urge to be parasocial.
Like I am kind of curious about whether Matsukoma actually writes that much about old men, but not enough to really take it beyond the manga page