Comment Re: Context? (Score 1) 119
The advertising clause wasn't "non-free" as much as a practical problem that was incompatible with the GPL's ban on additional restrictions. It was largely removed when much popular software switched from the 4-clause original BSD license to the 3-clause or 2-clause version.
The appropriate copyright notice clause remained in 3-clause and 2-clause BSD licenses. This clause is also present in GPLv2 and GPLv3.