while some points are valid it's not what makes a real so called shit coin.
look at doge as a prime example a meme that was a complete joke that became huge and is attractive and popular to people, a good introduction to people to enter mining etc. it has a huge supportive community on top of it, and it's cloned so what ? Next will you tell me what i should eat, wear, type of music i should listen too etc.
My definition of a shit coin would be one solely made for the dev to make a huge profit, pump & dump and then run leaving it totally unsupported which usually results in total collapse and alot of angry bag holders who lost their btc investing in it. There is alot of ignorance here as you assume everyone views a shit coin in the same light.