Hi

@user170039 hi. Suddenly I have a new theory where your username came from.

i just got assigned this one by the mods :)

@user334732 That's your default username (userid). We all have one. I am user9003.

If I opted not to choose a different username, or it was deemed invalid or inappropriate, I'd be user9003, by default. You are user334732, by default, if you haven't chosen a valid, appropriate username.

If you ever "share" a link to a question/answer, the URL will end in 334732, which identifies you as the "sharer". The numbers are with us whether they are part of our username (default), or not.

Hi, @user170039!

@user170039 Could you better explain what you mean in this "wink-wink" comment: "That is also one of my concern. But let's not continue this discussion for reasons we both know."

Do you have something to hide?

Hey, I'm approved to talk!

@user170039 I post comments in CRUDE now, they disappear!

@user170039 not there any more when i come back

@user170039 I don't think so, Normally you can see that - moved to trash etc.

All I said was I don't have a problem with this question: math.stackexchange.com/questions/746859 and asked whether the real issue with it, is that was it wasn't maths of the "right" level. I mean this is pretty basic stuff but imu96's answer is okay and perhaps it could be used for signposting to content about place value and about rounding off infinitely many zeroes.

Or maybe MSE isn't for mathmaticians of all levels after all?