I started a thread in the 'General Aviation' section on March 31 and was informed by email that it has received two replies - one on April 02 and the other on April 12, but neither reply has shown up on the forum. The thread title is "Fastest commercial flight you've tracked?"
https://forum.flightradar24.com/thre...you-ve-tracked

At first, I thought that the replies were from new members and were awaiting approval from mods, but it's taken a long time. The first reply is now nearly two weeks old.