That wasn't anyone's argument, not even ghoul's. His argument was that repeated state changes from frozen to unfrozen would cause more degradation than was gained by storing the peptides in a freezer in the first place.
it was already proven that a consumer grade freezer could sustain -20C in a stable fashion. In that sense ghoul was wrong, but only because his assertion was poorly formed, so let me help:
I'm going to assert that the consumer grade freezers that most people have won't hold -20C without some care. Some will perform better than others. Your standard top freezer on a common refrigerator tends to warm up very quickly. A bottom mount freezer in a drawer tends to work a bit better and a chest freezer best of all. This all presumes that the freezer has been adjusted lower than is typical (-18C)
With that in mind, let's say your aunt Karen is on grey market semaglutide and asks you how to store her 6 month supply? What are you going to tell her? Put it in the freezer, but make sure little Bobby doesn't hold it open for five minutes trying to pick out a popsicle or are you going to tell her to
throw it in the fridge and forget about it?
Freezer equipment aside, the open questions that we have are the relative rate of degradation of various peptides at -8C vs -20C presuming stable conditions. Further, what is the degree if degradation that occurs when a stored peptide goes from -20C to room temperature once, five times, ten times, etc.