(I'm going to put one feature/issue in each comment to make it easier to discuss each topic individually, hope that's ok)
Enhancement requests: Again, might be better addressed lemmy-wide, but as a mod, I think there is no way to "sticky" or "pin" a reply to an existing thread, so that it stays at the top. This would be useful for "official" replies in the voice of a moderator, and I imagine it will be useful in future if mods ever need to lock posts and have to explain why.
Yes, but if you don't know what people would find interesting, neither would the first few subscribers. It's better to have at least some stuff there (even if it's all posted by you).
"our costs have gone up amidst am inflationary environment and we have had no choice but to increase prices. Oh hey don't look at our financial statements, the fact that we made record profits is irrelevant."
Not to mention it's another piece of fabric for the baby to get milk, spit and potentially vomit on...