@luxuryrethreads wrote:
I have seen some sellers sell clothing from forever21 which is like our version of cotton on…
to the mix as well...

If a clothing item is less than 20 years old, they would only be allowed if the have been altered in some way, then classing them as handmade (commonly referred to there as 'upcyling').

 

Some sellers do list things they shouldn't, but etsy has a '3 strikes and you're out' policy which they do actually adhere to, so if a seller lists items that are against policy, there won't be too many chances left before their shop (and any associated IDs) are shut down for good.