[operations-research] is a site-name tag which does not appear to have any use and has no usage description. It is currently used on 8 questions, down from 18 originally before I recently began to remove it from a few of those questions (to avoid a huge edit bump). It is mostly used by new users, as some of them may be unfamiliar with the tagging system.
I am in favour of its being blocklisted, which means that the tag will not be able to be used in the future. As this action requires Community Moderator intervention, there has to be consensus from our community before it can be done. Your opinions welcome!