I can't think of anything more petty or pathetic then taking the side of a mob that demands an open source developer change the name of the software he makes in his free time.
People talk about entitlement in games but here you are not even paying or even having a pretense of sponsoring.
I don't even particularly care if he changes the name or not. If he makes decisions on the basis of spiting as many people as possible, he reveals himself to be a foolish and irresponsible individual. Unfortunately it's not even the first such incident, and as far as I can see, he learned nothing from the last one. That is a perfectly valid reason to avoid his software. What am I supposed to do, send all my life's savings to a project that I have no reason to expect will deliver quality?
(“Criticising me for punching your face really shows your entitlement. You don't pay me to choose whom I punch in the face. You have no right to tell me how I spend my free time!”)
Also, mobs occasionally have a point. The opposite of the ‘five billion flies’ fallacy is still a fallacy.
I’ve been happily using kitty for ages, but this butthurt “you hurt my feelings, so I am going to do the opposite” is very childish, immature and offputting.
I wonder if the author might be willing to reconsider. He should have newfound appreciation for how annoying name collisions can be.