after grinding a load up, i am now wondering if there was any point and are they not just better in a rocket, or is there something that i can do with them.

(cluster stars = commercial name for the round things in rockets that burn with bright colours)

also can we have a policy of just deleting the locked topics?

You might be able to use it in salutes, but the best uses are fountains and waterfalls, and probably a rocket comp.

ok then. i will try and make my own roman candles... line of bp, line of stars, line of bp and so on so forth

If you want it to work properly, you'll need to put sawdust or some other non-explosive on top of the star and the bp under it. When I make my own candles, I also paint the stars with a priming position, though this may not be needed with commercially made stars.