I know multiple people who have gotten death threats because of technical comments they made online, or just for having the temerity to exist as a member of a minority group. Not the vague "I'm going to kill you" kind, the "here's a picture of your front door on Google Street View, and an unsolicited pizza, I could SWAT you at any arbitrary 3am, have fun being afraid" type.
How about you make an iron clad promise people will be safe? How about if someone dies because of your minor concerns, you go to jail for life?
Would you be so "oh well" then?
If not, you're probably not taking people's very lives seriously.
It’s not like that’s the only way to hide your identity, it’s just one currently available. Plus it’s a very trivial to look up who owns an LLC at least in my state. Not the best solution IMO
Either way I think you’re being a little uncharitable towards them. I don’t think they’re trivializing it, I think they’re asking a very legitimate question.
A better solution would be to stop putting people's addresses in public records, and eliminating data brokers that expose name/address correlations.
This is by definition not whataboutism. Whataboutism is when you distract from a thing with unrelated things (e.g. "but there are more important bad things going on in the world than this!"). It is not whataboutism to bring up legitimate related counterarguments for a policy.