Can you explain how any of these are due to it having less users, or being cheaper to run?

>An advantage of Bluesky over Twitter that’s valuable to a lot of people is the degree of control it gives. Algorithmic feeds are more precisely tunable so it’s easier to get them to show the things you want to see, starter packs make it easy to follow entire circles at once, and moderation tools are robust, which helps tamp down on spam, trolling, harassment, etc.

Your statement appears completely illogical without a good deal of explanation connecting these concrete statements to yours.