D/s BDSM

It is popular, but by no means mandatory for persons in the D/s world to capitalize words and names that refer to Dominants, and not to capitalize those that refer to submissives, hence the capitalization of D/s.

This convention began on internet chatrooms, to make it easier to identify the orientation of the writer or the person being written about.

It is also popular for slaves and submissives to eschew personal pronouns, instead referring to themselves as "this slave" or "Master Bob's girl". This is seen as an attempt at modesty. It is entirely optional, and many consider it an affectation. It may have roots in the military, where new soldiers are required to refer to themselves as "this recruit" rather than "I" or "me".