@awnlee jawkingRules, of a fashion, for this do indeed exist.
do you really have the right to do that to someone else?
That is a separate question. One of consent.
My understanding, is that rules of behaviour exist, but only to those 'in the know'. Separating truth from rumour is a complicated and time consuming process, but... Every 'scene' has a set of defined rules that are known to those versed in the 'scene' and are used, both to get to the point, and to weed out 'imposters' or 'newbies'.
These 'rules' are going to be specific to the 'scene'.
Certain ways of wearing clothes, (allegedly) originated in prisons to inform other inmates as to the 'availability' of the wearer. Like wearing trousers in a way to show underwear.
There are ways to park your car and the status of the car to show the level of involvement of the occupants (side lights on/off/, windows down/up/, sun visors up/down etc etc).
The type of drinks on the table in bars catering to certain demographics, that whilst mean nothing to vanillas other than the possibility that the person at the table happens to like that drink, actually tells those (of that scene) what the drinker is after (and it's not the drink).
There are 'parties' where the attendees will wear certain accessories that broadcast the level of consent and kink to others.
Certain tattoos exist as public signs of kink that have subsequently entered 'mainstream' use without the mainstream knowing the background. For instance, visible tattoo's of dogs paws. At face value, all very cute, but is still used as a nod and wink as to the bestial proclivities of the tattooed, the type and position of the tattoo relating to the boundaries acceptable to the tattooed.
The list goes on.
This is important to your original question AJ, as it answers your question, which is really one about consent.
do you really have the right to do that to someone else?
If you are in a situation of like minded individuals (even if they are a stranger to you), and a specific individual has visibly (or situationally) given consent for a specific action (no words are needed) as per the rules of that scene and you act accordingly, then yes, they/you have the right.
Where things become problematic, is when someone not of the scene, finds themselves in the scene and is totally oblivious to all the subtle signs and signals.
Do you 'really have the right to do that to someone' who is oblivious/naive to the actions/state of dress that they are broadcasting without their knowledge? No.
Edit: Added a missing 'y'.