basically: it's greed.. IT'S GREED. Greed is.. massively strong.
He always tries to aim a little higher whenever he hits a sub-goal. He doesn't realize that gifted subs are the reason he's hitting these fucking stupid goals in the first place, and the dips towards the end of the month are going to kill him.
You must be out of the loop, because the initial sub-goal was 625 for like a week. Not only is anything beyond 600 greedy and unrealistic, but the fact that he keeps lowering it until it's within reach for his paypigs is beyond disgusting too.
Outlining his sub-goal shenanigans throughout the months is hella easy;
august 1: "I know guys, I KNOW, 625 could be a reach, but let's try to hit it together, okay?"
august 10: *doesn't mention that he lowered the goal* "We're not far off of the 600 sub-goal guys. I really wanna hit it *hint hint*"
august 20: "We've seen a huge dip in subs, but that's only natural guys *sniff*. HOWEVER, 550 is perfectly doable, and I know that some generous party will come through and make this begtrospective event happen!"
august 27: Let's check the sub count.. 478! We've actually gained a few subs. Okay everyone, just 22 to go so we hit the 500 sub-goal! 3 days to go you guys!"
imagine announcing a sub-goal and gradually lowering it because your "natural and organic growth" was never a thing to begin with. Delusional pig will always be delusional.