What is with the numbers at the top of the thread?

[Fabster]

On threads I am on?

ooh well spotted eagle-eye i didn't see them!

EH? Sorry, can you explain??

Number of messages since you posted? number of threads you're on?

Mine's suddenly not working... mew

olivia when you clicked on threads im on, there was a number like 89502 before each thread title

now th ere are no thread titles [dark look at bigtech]

The numbers have gone.

Can't see it but each thread has a unique ID number - this thread is 858189.