1. Snoop has mentioned sets and other gang related shyt starting with his first album. 2. You think he knew the song would go #1 on the charts?
1) When Snoop first came out Hip Hop was not on the mainstream level like it would be in 2004. R&B was still the bigger Black genre when Snoop first came out. Snoop came out the same year Ice T was being painted as a negative influence in contrast to decades later when Ice T would be a household name in Hollywood with a rep that is a 180 from his "Cop Killer days." Also....Snoop was only repping "neighborhoods" when he first came out not "Crip." Saying neighborhoods is masked in a way where those who aren't familiar can't catch it. Straight up saying "Crip" is a whole different ball game.
2. That song is fire. I'm sure once the song was mixed mastered and set up to be the first single, he had an idea that the song, which is him and the Neptunes, 2 very big names in Hip Hop, would atleast be heard on major Hip Hop platforms. He knew MTV and BET would play the video. Lets not take away from the reality that Snoop knew that song was going to go out in the public when he promoted that very direct line about what a specific gang does.