Looks like some kind of manic persecution. If this is the only case since 2018, then you can consider yourself lucky. There has been nothing like this for such a long period.

Don't get irritated. Take a breath and take measures to prevent this from happening again - do everything so that such individuals don't find you in messengers again.

This user is not the personification of the BTC-community. He can be considered a bug in the system. The majority of users here are quite adequate and sane people.