I hear you.
At the bottom of each message, there is a section that says you can Report An Inappropriate email. (You have to be on your desktop or looking at Messages in a web browser to see it.) It will lead you to an online form. Choose the reason and report each message.
Blocked bidders are supposed to be blocked from being able to send you messages but sometimes they simply are NOT and I don't know the reason for it.
If it persists or starts to get really weird, you'll have to take it a step further and call ebay Customer Service.
Otherwise, ignore the person as best you can but be wary of brand-new bidders who've created new accounts to circumvent your block.
Good luck as you carry forward.
