I guess the question is how often does people actually check their itch feed, and I’m not gonna lie - it’s the one of my many feeds that I check up on the least. I think I also follow you in most other places (including mastodon), so if you post anything I’ll most likely see it somewhere else first.
But itch is one of the slowest ones, so I tend to not miss anything in it even if it’s been days since I last checked it - unlike twitter/mastodon, where I’ll miss pretty much anything that was posted around the time I’m hitting the bed.
But it might be nice to have updates posted here too for the people who finds you though itch and looks through your profile? No idea how much traffic that could be.