[sbierwagen]

  I just created a new account a couple of hours ago, 
  hoping to participate in some discussion with a certain 
  level of anonymity.

Presumably, if a mod thinks you're sockpuppeting, they just ban the account.

Anyway, the only way for us to judge the validity of your claim that you put non-trivial information in them and didn't use aggressive language is to... read the comments you made. But you can't show us the comments, since you didn't want to link them to 2510c39011c5. Funny little dilemma.

[2510c39011c5]

Perhaps the question could be rephrased as, "how to make any comment posted by an account created less than 5 hours ago visible by any other accounts?"

It looks like the system does not allow a new account to initiate a discussion thread; so I have to ask with an account with a certain accumulation of karma in order to solicit that information.

[sbierwagen]

Obviously not all new accounts are dead-by-default, because we can see comments from new users. So either you triggered some obscure-by-design antispam measure, designed to be intentionally hard to reverse engineer, or a moderator manually banned the user.

[2510c39011c5]

They probably would give better visibilities to those new accounts created from certain well-known IP address ranges...

And their visibility mechanism seems to be a bit involved...as for now, each of my three different HN accounts has a different view scope for posts in a same thread...

Seems these days it is much more difficult for a new account of vague origin to participate in a discussion here than it was a few years ago...