What is our stance on questions based on some phony/scammy websites/webpages? Are they on-topic or off-topic?
This doesn't make sense to me, but the reason I'm asking is because of this link:
How do plastic blinds not block like 99% of the UVA in the closed position? I picture closed blinds (maybe to a lesser degree for curtains), to be like a wall. A wall blocks UVA/UVB.
I am somehow surprised that the question got closed as I assume that in some cases, the OP doesn't know quality of the website: this is why they asked the question here (to check a few statements from the website).