You can only make your own decisions. So what are you going to do now?
I'm not seeing a problem so far. Qualifying for VA disability is not a crime. They have a process for that, and it doesn't include your opinion about whether they deserve it. Neither is talking/bragging about it, although I agree they're d-bags for doing so.
I'll take your word for it that you're a vet and genuinely bothered. But your posts smell more like an anti-vet smear job, or some weird military version of virtue signaling.
You do you. Call the VA or your congressman if you want. Again, www.va.gov has contact information ready for you. But don't waste time getting worked up over what other people do.