At the very least, they're wasting bandwidth to a (likely) low quality connection. But anyone making malicious POST requests, like spamming chatGPT comments, f

At the very least, they're wasting bandwidth to a (likely) low quality connection. But anyone making malicious POST requests, like spamming chatGPT comments, first makes GET requests to load the submission and find comments to reply to. If they think you're a low quality user, I don't see why they'd bother just locking down POSTs.