One of the times the issue of overidentifying with LW came up here, about a year ago, I mentioned that my self-description is "LW regular [forum participant]". It means that I post regularly, but does not mean that I derive any sense of identity from it. "LWer" certainly sounds more like "this is my community", so I stay away from using it except toward people who explicitly self-identify as such. I also tend to discount quite a bit of what someone here posts, once I notice them using the pronoun "we" when describing the community, unless I know for sure that they are not caught up in the sense of belonging to a group of cool "rationalists".