Already too many out there, i suggest you not to unless you want to scam people, and i heard that these scripts don't work as they should.
nothing wrong with joining in if the script works well with steam api
not all jackpot sites are scams, some sites are well run and have a steady stream of players and the fee you can take from the winnings can be good money
the only problem is finding or developing a good script for the bots that work well with steam api since their api is known to be notoriously hard to work with