As discussed in this question about Skype Megilla reading, this year due to the extraordinary extenuating circumstances many people found it necessary or preferable to attend an online Megilla reading.
(I'm probably just fine, but even with a cheap mask I thought the pikuach nefesh of not coughing on all those bubbes and zaydies was a stronger factor, especially since there is documented community coronavirus transmission in my area; hearing someone coughing definitely makes many people afraid. Good effective masks are unavailable.)
In every shul I have ever been to, noisemakers are provided or brought to drown out the name of Haman as it is read. I've been taught that was part of the punishment for his evildoing, that his name be erased.
In the online reading I attended, the baal koreh muted all attendees, as otherwise the background noise would have made the session unpleasant. However, that left me with few options to avoid hearing that name. I drummed my fingers on the keyboard but that wasn't very loud, and the name came through quite intelligibly.
I thought about muting the reading for each occurrence, but that would have been tough to do and would have likely lost me some other words.
So, a few questions:
(1) Is there anything Halachically objectionable about a megilla reading where you can hear the name?
(2) Is there any minhag for online Megilla reading that would cover this?
(And please note that while I'd certainly enjoy reading some Purim Torah on the subject, this is a real question and I'm looking for a real answer.)
And note: the comments from before I edited the question seem to imply that the minhag I've been taught all my life, which has been followed in every shul I've ever been to in a dozen cities, is not only wrong, but so completely wrong that people didn't even understand the point of my question. I'm not sure how to rectify this.