I'm the only person I know who is experiencing dreadful battery life, but all six of the iPhone owners I know have lost a good hour per charge cycle of battery life with iOS7.
All six iPhone owners that I know are experiencing Safari crashes and all of them have apps crash on them. All six of them like the look of iOS7 but hate the way it performs.
I would say that out of the six iPhone owners I know in 'real life', 100% of them having issues with iOS7 suggests that these issues are more widespread than you claim.
Now I'm certainly not disputing that your own device performs well, but I do presume that you can't use it for apps and web browsing all that heavily. If you do, then it's very strange indeed.
I'm certainly not in some extreme minority here though.
I use my devices plenty heavily - though I use three equally which would space out usage per device, my overall total usage is quite high.
I had some problems with iOS 7 - mainly the music app in which playlists would crash the app and song listings would "twitch". I also had the occasional respring (once or twice a month) and safari crashed a few times.
Perhaps I simply don't see these things as crippling. These were all iOS 7.0 issues. Since 7.1 I haven't experienced any of these issues. Has an app crashed since the update? Yes....its happened once or twice, but hardly anything out of the ordinary.
As for battery life, my wife has a 5 and complained the other day about it dying faster. I told her to use it normally throughout the day and let it get to 1% and show me the usage. When it finally did, she said it was fine.
Point being, these battery issues have happened after every major release of iOS. They "happen", people complain, then it dies down and the battery normalizes.
If you and your friends are having THAT much trouble after 7.1, go see Apple. Its not normal. I have a slew of family, friends and co-workers on various Apple devices and I haven't heard any of them complain about bugs or crashes.
Take that however you want to take it. Not my intention to rub it in your face or say your problems aren't valid. The intent of the post you responded to was merely to caution the OP about downloading IPSWs from places other than Apple. Especially on April Fool's Day.