You should know that if you also have a non-throwaway account, HN will unify your accounts in their backend records.
And the situation here is that felon_in_texas visits HN in his usual manner, views a topic he wants to comment on, creates an account on the spot, and leaves his comment. How noisy do you think the IP identification can be?
Yes, you should assume that the moderators will know, and you should be fine with them knowing, because you’re not using the multiple accounts to escape moderation, but rather for greater anonymity in the comment thread.
The rules that I follow, which I think are implicit in “use good judgment”:
1. Don’t vote on the same thing from multiple accounts.
2. Don’t participate in the same comment thread with multiple accounts (or if you do, only separate parts of the thread). Don’t create a fake impression of consensus or have your accounts interact with each other.
Those are probably the two big ones I would imagine.
Whether the accounts are actually tied together on the backend, I don’t know. I would suspect that they are not automatically linked, but could probably be linked if the moderators are investigating you for bad behavior (like voting on the same thing with multiple accounts).
Please be precise about how I can demonstrate this to myself.
Not the first time I've used a throwaway, and they've never merged my comments into my main account (only use throwaways for these types of discussions - I assume abusing it, such as ban evasion, would be a different story)
If you have evidence of the contrary, I would love to know.