Guys i cant help but to notice in all gyms i went to, most beginners always hog the abs machine/bench. I understand abs is physically appealing but with small and skinny physique from head to toe but these bunch just spend their whole session doing crunches. Skinny with abs is like fat woman with big boobs.

Wth man I know its not my business to judge but I really see they are wasting their time. Even for me I will bulk up nice nice first only then do abs. In fact during beginner stage for skinny people, you dont really have to do abs for them to appear. Any compound stuffs like military press, squat, deadlift, bent rows etc already engage the core area, and as more of these muscles get bigger, you will burn more fat from increased metabolism. Result is your abs gonna show more while getting bigger arms, legs, chest, back. Why not?

On the other hand opposite from hardgainers, flabby people also i see spend most their session crunching lol

Are you one of them?