We have notices, comments, and articles of all kinds being posted GNU social, not just just "queets", so I really think the verb "post" is best. As far as nouns go, why not just use the noun for what you're posting. Is a photo a queet? Is a comment a queet? Is a link a queet? For those of us who don't use the Qvitter interface, "queet" is irrelevant. Should every app use its own verb/noun? Do people using Mustard moot moots? Do people using AndStatus ant ants? It gets a bit ridiculous.