I love upbase, but I’d say it’s bad form to go on somebody else’s announcement to promote your own product, despite the fact that they both fill very different roles.
Upbase is a PM tool and not a direct competitor of Tweek, so I think giving people more choices is not so bad. Anyway, shame on me for this promotion.
IMO not bad form since it's useful for the average HN reader to have more choices. As a customer I want to see competition between vendors, that's always a good thing.