Why would you want to not have the default instance name in a SQL server connection string?

One of our customers does not want to put the default instance name "MSSQLS开发者_运维问答ERVER" in the connection string. Unfortunately the dba has not replied to any of my emails inquiring what the problem is?

Any reasons why this would cause an issue?

JD

The only "problem" I would see is the confusion that would be caused when someone looks at the connection string and mistakenly thinks that they are using a named instance instead of the default.

This is one of the rare cases where I think you would actually make things clearer by omitting information.