Appreciate the comment and question! There's a reason the Joker variant was a scrapped beta version, which I mostly included in here for fun. I'm not at all surprised it made the game a lot easier for you (though having the Jokers show up with any consistency is somewhat surprising, you must be quite lucky), but as long as you are having fun, great!
As for your actual question, please note the final sentence in its section (pg. 13 in the regular book):
"If the Joker should appear from your draw or in your reserves you get to reap all the rewards without any of the work! Choose any 2 bounty rewards, remove the Joker from the game, and shuffle the discard thoroughly back into the deck."
So if you have a Joker appear as a lead it's an auto clear, which is obviously stupid strong. You may choose to trigger this effect later if you have an open lead you want to just set it in, but that comes with its own pros and cons, I wouldn't recommend it personally.
Thanks again for taking the time, I hope that helped :) Please let me know if you have any other questions.