I have never heard a high-ranked budoka from any martial art put down another budo or another style or another budoka. Never.
You clearly have never met my teacher
All fun aside. Most high ranked teachers I have met often said: this is how I do it. You must find your way. But were very clear when you were doing it wrong (which in fact is judgemental). I have also met teachers that made comparisions to other styles to which they disagreed.
A small story
I remember my first ever seminar with Fujitsa and Kanetsuka Sensei. For those that do not know them, Fujitsa is quite a big fellow and Kanetsuka is a small guy (Ueshiba's posture). Their styles have adapted accordingly: one makes big movements, the other very small. They had class immediately after eachother. So when Kanetsuka finished and Fujitsa took over class he made fun of the small movements, told him he was trying to hide the secrets from us. Everyone laughed, including Kanetsuka. But off course in very good spirit, never putting down. Clearly with the highest mutual respect.
So I draw my own conclusions about the people who post derogatory comments.
At least it shows were they stand, but I would rather not judge them on it.