Indeed when I first played this game my brother showed me each and every champion and their abilities and I really liked Masked characters in games like Sub-Zero and Scorpion etc so I only wanted to play those types but the more I played I knew the good champions and their power spikes.
At first I didn't know what to look for in "power spikes" as my brother told me you will know from a (feeling)-no homo and that when you play each champion their power spikes will be more and more noticeable against other champions etc.
Random people play champions but not know who are the late game /Early game/ Mid game champions they only play champions that they feel they can either have fun, carry, etc. Randoms also feel like if their not 50-0 they lost even when their 0-2 but up 70 cs compared to their lane opponent.
Depends which elo you are at and if it's (There) you are wasting your time.