Nope, don't think you are rude at all. I'm just the old timer that would rather live with an empty looking tank for years if necessary until the fish grew into it. :clap:
I just worry about individuals , in general, who hope/plan/promise to upgrade in time to prevent stunting or problems with aggression, and then are unable to for whatever reason.
Or a newbie who sees your stock/tank size and just walks away with it must be okay, so maybe a little smaller will also work.
Have no qualms about grow out provided the upgrade happens conservatively early, gat. Please continue to do your excellent work on tank maintenance!