Some SE users are using numbers for their user name. It is difficult to identify them. Now the number has become a 7 digit number [e.g. user1234567]. So, isn't it good if they use some names instead of a 7 digit number?

E.g. Can you distinguish user1234567 and user1235467 quickly?

I am asking to compel the users to use a name instead of these types of consecutive 7 digit numbers.