i was arguing that lying of various kinds is pervasive and sometimes beneficial, (...)

And I argued that this is irrelevant to the claim that you were apparently arguing against.

it is far too simplistic to argue "lying degrades the signal, and is therefore bad".

I don't see that claim being made directly, and there's only a hint of it in connotation. Going further up the comment thread, I can see that MugaSofer apparently believes that having correct information on this is important and that lying is in this case bad, but this is not (as far as I can tell) appealed-to anywhere as argument for the claims in the comment you called "meaningless".

So I don't see the two claims as being causally related, and certainly not something of the form quoted above. If this is implied, it is not obvious to me and I would ask for clarification or more explanation, rather than assume it implicitly and argue against (what is then most likely) a strawman.