Your condescension is unearned.
@evan It isn't intended as condescension. The common saying of "you can't know until you know" applies. Until you run across what you can unsee or unthink it isn't a possibility.
The Kathy Sierra debacle that was the final push that got Twitter to have their private accounts in the manner the put in place (as a stop gap) was a brutal wake-up call for many. The frailty of that system also was problematic and those, like Kathy, ended up leaving in the tens of thousands.
if Bob replies to a post by Alice, they are implicitly relinquishing their communication style, in that context, to the communication style of Alice
if they don't want to to do that, they should not reply to Alice
Bob should not be able to hijack Alice's post with their communication style
it is indeed about respect
but you aren't following what is the most respectful thing here
it is disrespectful to Alice that Bob's communication style can hijack Alice's post