[soryalomop]

Brother, I'm sure you must know that its only the ignorant who say that. I've never heard any Salafi scholar say such a thing.

True.
We must assume that most part of the Salafis (laymen ones) are ignorant, then.

Traditionally "Mufti" has been synonymous to "Mujtahid".

Yes, but we should consider the "'urf" definition of Mufti nowadays.