That's because GTAS is more centered around the network crews since about atleast 40 percent of the active forum browsers are in a network crew and people usually just watch those videos. Not many people browse the forum anyway and if they do they mostly just watch the videos and the topic but won't reply. Also but that might only be me is if your video ain't modded you won't get many replies, aswell as Alien City.
Mod your videos and get thread filled with comments!
That's really pathetic. The SA-unmodded-video section is going down badly. If Virtual Insanity 3 was posted one year ago it would certainly get over 6 pages of replies.
Anyway thanks for liking my stunts.