I am always nervous migrating sites from domain A to domain B but in this case, it is a person blog, so I have no fears. Both sites are verified with Google Search Console, the 301 redirects are in place and working and I didn’t make the mistake of robots.txt’ing out this site from GoogleBot.
So I processed the cross-domain change of address feature and it seems to be working. I am already getting tons of comment spam on this new site. Yay!
I’ll keep you posted on the stats – but this site has been pretty stale for well over a year, so won’t be that easy to measure.