It's only because you had such inflated hopes. In your heart, you thought humans were as noble as you. Well, wake up to the reality: this place is populated by average humans and it reflects them. They are not a pretty bunch to behold. It's just the way it is, but take a mirror and look in it: YOU and @kyriacos and many others (not as many as you might have hoped) are working to better it ! Don't let down because nothing comes without effort and perseverence. This place has got a number of things right, the glass is also half (or maybe one-quarter ?) full !
If somehting better comes along it will probably be better until the human locusts notice it and come to suck it dry. Then what, you are going to jump to the next things that comes along ? Don't you fear this periodic jumping will leave you frustrated and with a feeling of emptyness ?
Wouldn't it be better to not let down and keep writing great posts and do whatever you can come up with to better this place ?