I disagree, it's a very apt description of an increasingly common phenomena online. When one's need to signal group membership outweighs their personal feelings

I disagree, it's a very apt description of an increasingly common phenomena online. When one's need to signal group membership outweighs their personal feelings regarding the issue at hand, that's virtue signalling. With the balkanization of online communities to being hyper-focused, and actively exclusionary of those with slightly different beliefs, virtue signalling becomes an important component of becoming and staying a member in good standing. Online political forums are stark examples of this.