don't change according to reception

I cannot remember the title off the top of my head, but I remember reading about at least one manga that changed the magazine it was originally serialised in to reach a different market segment.

Doesn't seem very meaningful for us.

Disagree. I found it useful.

After watching a substantial amount of anime, I noticed - based on my AniList stats - that I enjoy seinen anime more than those of shounen and shoujo. (You can guess which demographic I am a part of.)

This made it easier for me to seek out anime that fit my taste - though it certainly is a self-reinforcing loop.

I'd still check shounen / shoujo anime out; they simply have a higher bar to clear.