Pretty much anyone can say anything here, it is their choice. If we could remember when one chooses to ignore others comments it does not get much traction, it quickly becomes pretty much a non issue. That is a good thing mostly. And people have the choice instead of contributing a derogatory and contentious comment to have a comment that contributes to the good of all here. It is a choice.
And many here do choose well.
Even if they are trying to correct someone, as I think most here would agree Almarg and others have done so kindly and with dignity in the past. People like him raise our dignity for one another and our fun and enjoyment along with solving issues we may or may not have seen that we have.
We all can't have it our exclusive way in any situation, we all need to fit in. And we can do so for our enjoyment, as has been done many times on this thread. I think most of us are here because we enjoy the hobby and the sharing of our joy. Sadly some enjoy bullying at times and some all the time. But ignoring them can help limit their comments or make them go away altogether.
Maybe other have mentioned this. A jazz vocal I really like is a 1963 recording of John Coltrane and Johnny Hartman on Desert Island Records reissued by Verve Records.
