Most STI's are transitory and easily treated. So any WG may be infected then not infected and later infected again, and this applies to ALL WG's who don't use a condom for absolutely everything. So what is the point in naming because it will only be relevant for a short time, and at any given time it could be anyone including the punter.
Risk is a statistical concept and as such it is mathematically applied in the context of populations based on certain assumptions. For example one may argue that the risk of contracting an STI may be lower with agency girls (population 1) than curb crawlers (population 2) based on the assumption that the former may take more thorough precautions.
So in my view naming will help no-one unless it is instant and has a short expiry date.