[greggyb]

I agree. I work in Microsoft's SQL Server (incl. variations, e.g. Azure SQL DW) quite a bit. Based on my experience, I am the only person using semicolons in T-SQL.

[throwaway_pdp09]

I always try to use them. It's going to be mandatory says MS:

"Although the semicolon isn't required for most statements in this version of SQL Server, it will be required in a future version."

[greggyb]

That has been the guidance for a loooooong time.