The validity of an argument is not dependent on the duration of a poster’s freepership. Or indeed anything else about the poster.
Refute an argument if you can, but what you are describing in the inverse of the fallacy of Appeal to Authority.
That is exactly what I am saying, but an fr-e thinks the validity is dependent.
I agree entirely. Braying on about ‘’newbies’’ or how long one has been posting here makes said person sound like some immature elementary school yard bully.