I on the contrary find it perfectly reasonable. Academic publishing has its own share of bullshit and I can well understand someone, specially a retired person,

I on the contrary find it perfectly reasonable. Academic publishing has its own share of bullshit and I can well understand someone, specially a retired person, wanting to give up on that kind of prestige in order to save time and energy for actual science. For example, as far as I know, Grigori Perelman has not published the work that won him an offer of the Fields Medal in any journal.