Its a personal choice since its a feature that someone could choose on for privacy purposes.It doesnt matter most of the time neither you do hide or showoff usernames as long you dont
make use of it that do connects on your real life names or something like that.
Yes ofcourse it's a personal choice that whether you want to show your names on that list or want to hide your identity and remain anonymous player.There is nothing wrong as Rollbit has allowed users to do the same with their 2FA security measures and after that implications most probably @Aeroh has hidden his username and who knows the actual Rollbit boss so we also don't need to worry about it.make use of it that do connects on your real life names or something like that.
then its just nonsense or even pointless in the first place.
Privacy does matter but using up random username as a whale player wont really be that much of an issue and better to cut off discussion about hidden usernames.
Curiosity about something is normal in this world and it is not pointless at all. The same happen when many people ask who is Satoshi Nakamoto, we are curious who is him, where is him, how rich is he and the discussion will never stop till they get the answer or at least a clue.