The person that receives my message clicks "reply" and I get an email directly from them. Therefore; my email address was not hidden from them. This is not new. I have seen this behaviour from this site for many years. I'm just now finally reporting it.
BCC is only useful when sending an email to multiple email addresses. When BCC is used to send email to severl addresses; each recipient does not see who else got a copy.
It is impossible for me to take a screenshot without revealing email addresses.
Frank Bax - 27 apr 2021 — 17:18 (laatst bijgewerkt 27 apr 2021 — 17:20 door auteur)
It is correct that when you click on Reply the email of the sender will be visible. There is no other way to do this, because we are not a mailing provider. If you send a personal message to a person it's logical that they can see your emailaddress, otherwise it could be seen as spam.