If the author had a reason for why they didn't like non-monetised free clones, it wasn't clear to me, so I'm going to make up some possible reasons, so there's something substantive to discuss.<p>Monetised free clones still support the market for game developers (i.e. they can have and pay employees).<p>Monetised free clones provide a model other for-profit developers to copy, whereas non-monetised clones can destroy a business model without suggesting an alternative one.<p>Monetised free clones have a motive that he can relate to more, and developers supporting themselves is more worthwhile than whatever motivates developers of non-monetised games.<p>Monetised free clones can have more resources and incentive for creating good games.<p>Monetised free clones do not devalue the game as much as non-monetised free clones, as there's still a cost, if not so direct.<p>Competition from free clones in general harms the original developers, but for-profit clone makers are likely to be harder to persuade to stop, let alone by using moral arguments, so its only worth arguing against people who do it for admiration or because it makes them happy, both of which can be reduced by criticising them publicly.<p>That's pretty cynical and I've probably got some strawman arguments there, so I don't want to attribute them all directly to the author.