Congratulations! I know how you felt, I was just waiting for my 1000 but I also felt like "if I announce that, somebody might unfollow me on purpose and by the time I post the announcement blog, I may not reach 1000 lol " reputation score does not mean anything nowadays but follower means lots :)
Well, you don't need those kind of followers that would unfollow you without serious reasons :)
I see it's a mix... I've seen terrible spammers with very high reputations and people that have bot follows or follow-for-follows in the multiple thousands. The system can be rigged :(