If you reply using micropub and webmention, the reply is on your own site; it only shows up on their site if they have webmentions enabled and approve it. The friction is under their control.
How about "mostly harmless"?
Hello and welcome to the indieweb - do come and talk to us at chat.indieweb.org - if you want to start a Homebrew Website Club in the Philippines we'd love to help.
No: But I do miss it
“All the bubbles since had just moved money from the world of the useful into the pockets of the hyperrich, to be flushed back into the financial casino where it would do nothing except go around and around again, being reengineered by high-speed-trading ex-physicists who should know better.” https://