1 person cant carry a game with 4 morons on team
This is wrong, as any moderately high elo player will cruise through silver and bronze like they aren't there.
You had low Bronze MMR, what's hard to understand? The fact that you got put into Silver 5 in the preseason means nothing because you had fresh 30 MMR, which means you pretty much get a freebie(this is why Silver 5 has the highest population and why it's nothing but Bronze+). You probably played more at Silver 5 in the preseason and dropped your MMR even lower, because it's hard to drop out of Silver 5.
when ur rank is based of if u get smart ppl or dumb fucks on ur team
This is irrelevant at those skill levels. It is without a doubt not only your team holding you down. The constant bitching about teams is one of the main reasons that people stay in low elo. They're never able to self analyze and improve their own play because it's always their team's fault.
It's their team's fault for not saving them when they wandered into the enemy jungle. It's their team's fault when they're getting camped. It's not because you keep overextending and refuse to buy wards. Wow that champion is so broken, it's not because I made mistakes and lost a 1v1 in lane, that champion is fucking stupid, fuck Riot wow. No, I definitely wasn't missing tons of CS missing experience, it was because that champion is so stupid. It has nothing to do with me voluntarily giving up my lane presence and getting zoned. OMFG HOW MANY TIMES DO I HAVE TO PING MY JUNGLER WTF