Hi @crypto.piotr,
I think you can consider all the comments here from the people defending you as a sign of appreciation for your work. I would encourage you to continue on your way. I can understand that people might feel disturbed by the memos. Maybe it would be an idea to create a form on a website where people can register to your memos. Like that you would have their approval and the memos wouldn't offend anyone? It could be a like a google form. All registrants would directly be added to a spreadsheet which would make the sending of the memos easier in addition.
Best regards,
Achim