Can a user enter 1000 GAs in one week without using bots/scripts?

ofc - bot is only as efficient as very active user - they both have the same point regeneration. I for example almost always use up all my points and very rarelly do I hit 300p, so in theory I'm as effective as any of your mentioned bots/scripts. It all depends on points regeneration and point value of games you enter into. Thus loooking at just raw number of GAs entered is not really telling you much either. Because if I enter 3 60p GAs and your bot/script enter 36 5p GAs in the same time - we both were efficient in the same way, while his numbers will be 3 times higher.

well, the 2016k train was live for 3 weeks i think. so, it's possible someone entered 1000GA in one week.

Yea. I mean, if your tastes run cheap, and you can check SG every few hours for most of the day, its more than possible.

Imposible for me .
I join 1000 a month if im lucky and there are nice bundles ...

Possible? Yes. Without a bot? Not likely. As to the RNG, I have no idea, but I can share a WoW-related anecdote. My Reins of the Raven Lord dropped on my 136th attempt, whereas my Ashes of Al'ar dropped on the first try. A friend of mine gave up on the Deathcharger's Reins after literally 1000 attempts, whereas I got mine accidentally on a second run whilst farming runecloth and a second one on my druid on the 12th farming run (I was multiboxing).

Wow. And I thought winning 2 on my first week was much.