>Do they truly help protect video games
not by themselves. what helps "protect" video games are rom sharing websites, and groups like no-intro and redump. it's fair to say that most games released since like 1980 aren't playable anymore, if you aren't willing to spend a lot of money and effort on hardware. it's not something that is realistic for most people, compared to buying a new release through steam or GOG.
>are they an excuse to pirate games?
even if that was true, which i'm sure it is for some people, why is that a problem? if you want to support a particular developer, you can just buy their newer games, or send them money. if you don't want to support them, or are unable to, then you won't, simple as that. at that point, whether you pirate their game or not doesn't matter.
>>1696
>or if we want to play them with unofficial translation patches.
this is also a good point. many great games never left japan for example, and buying them all the way from japan is super costly. some games might even be region locked, which is a whole different problem. and of course, not everyone speaks japanese, or even english in the case of english translations.