Not to be the tool of Big Yeast or anything, but single-purpose accounts aren't allowed on HN. That's because pursuing a fixed, pre-existing agenda is incompatible with the curious conversation we want on HN, which is unpredictable and free ranging. So I'm afraid we have to ban this account.
If you want to participate as a community member—i.e. posting and discussing on a variety of topics of interest as curiosity moves you—you're of course welcome. A little yeast or no-yeast is reasonable as part of a mix alongside everything else, but we don't want campaigns here.