new “rules”

My planet fitness just put up a typed up sign on the front desk yesterday and i can’t stop thinking about it. It said normal things like no large gym bags on the floor and common knowledge things like that. but it also said, in all capital bold letters, no spaghetti strap tops and no nipples showing. While I do understand this to an extent, I’ve never noticed excessive skin showing in the years i’ve been going to this gym. It also just made me feel a little self-conscious. It took me so long to get comfortable showing my body at the gym and this just feels like a step back. half of my tops are spaghetti straps and i throw away all the padding if they come with it. I guess i’m just wondering if anyone has experienced anything like this at their gym, or if anyone has any opinions or advice