Since "migrating" from Wordpress to Blogspot:
- Traffic to Wordpress fell from ~100ish visitors a day to ~30 or ~40ish.
- This site went from 0 to also ~30 or ~40ish.
That went much better than I expected, considering I couldn't set up a proper HTTP301-permanently moved (WP charges you for that, which IMO is slight extortionate for a site I don't want to monetize). Let's see how it goes 10 years from now, when I have to migrate from Blogpost to something else.