The GPL advocates say it is FUD, but as any BSD advocate will tell you the concerns are real. Note that GPL advocates spread FUD about the BSD license
In my experience the GPL advocates completely ignore the concerns of the BSD people. The BSD people understand the GPL concerns they either don't think they are very real world (they will acknowledge some exceptions when forced to); or more pragmatically think that the GPL: concerns are outweighed by other concerns.
You need to figure out where you stand. Calling the concerns of the other side FUD is in fact not helpful.
In my experience the GPL advocates completely ignore the concerns of the BSD people. The BSD people understand the GPL concerns they either don't think they are very real world (they will acknowledge some exceptions when forced to); or more pragmatically think that the GPL: concerns are outweighed by other concerns.
You need to figure out where you stand. Calling the concerns of the other side FUD is in fact not helpful.