That feels an angry response. Of course people can wear what they wish, and of course people go about their day. How odd. This is a chat forum where people are discussing it. If it has triggered you just hide it, as no one is trying to cause offense, no one can see each other so it’s not aimed at any one.
As to who decides what is solvenly, this is the definition of slovenly.
Slovenly describes a person, appearance, or habit that is notably dirty, untidy, or careless. It often implies a lazy, slipshod, or negligent approach to work or personal grooming. Common synonyms include messy, unkempt, sloppy, disorganized, and slatternly
so I’d say society, people, Decide, if something is dirty, or untidy or unkempt, sloppy, then it is what it is. Its visible to the human eye.It’s not so much about the type of clothing, although that plays a big part, but also are clothes clean, ironed, etc,
a hoodie that’s been worn multiple times and not looking clean, a pair of leggings or joggers all bagged out at the knee or arse, as worn repeatedly and not washed, a t shirt which is stretched out, possibly stains on clothing, dirty shoes etc, hair looking greasy or in need of a brush, can all give the appearance of solvenly.