I brought it up in response to your initial post stating that normal clothing does not protect you from all radiation.

"Note that just wearing clothing does not actually block the radiation of sunlight"

This is a fact. It's an easy to understand fact. There is no possible criticism to that fact. It was not brought up to argue, it was to better arm people with knowledge to deal with bright hot days. This is especially important to fairer skinned people who burn easily.

Even if you tried to argue that it protects from sunburn -- and to be clear, it absolutely does inhibit sunlight by reducing surface area, like any shade does, and therefore hits your covered skin less than uncovered skin -- my wording was clear. You need clothes designed to block sunlight to block sunlight.

Sunlight is good for you. But like all things, moderation is important and UV rays do damage our cells, and I would like to ensure that as many decent people as possible have the knowledge they need to ensure survival against the will of the powers that be.

Knowing when to cover up with UPF gear (e.g. commuting at noon in 103 degree weather in a bright area by bicycle) is good knowledge, and not everyone knows about UPF gear

Also, it wasn't even phrased as an argument. It was a reinforcement and additional point to your post.