Obviously any one person's experience is only anecdotal, but I'm still waiting to discover that anyone I know in real life actually likes iOS since v7. However, I seem to know plenty of people who wish they hadn't upgraded, or even who returned a new iPad with a recent iOS because they thought they were getting what they'd seen before (iOS 5/6 generation tablets that friends/family had) and hated the new one so much.

Personally, we're still pre-v7 on our iPad here, after reading way too many reviews about severe performance drops on this device after the "upgrade" and learning that there is no way to go back once you've done it. We literally ignore any updates for the system from Apple and just carry on happily enjoying the product as we bought it, making us almost uniquely satisfied among iPad purchasers we know.

Just like you'll deny that people are complaining about Yosemite

Just some very vocal individuals on a niche website, and some trolls.

My own experience of Yosemite has been the polar opposite of many here; better stability, faster, longer battery life etc. All on a 2011 MacBook Air. I never had any kind of issue with iOS 7 either. The odd reset over the last year on my iPhone 5, but the significant majority of the time (99% at least) it worked and it worked well. Sorry to rock your world view, but have you at least posited that these people vociferously complaining are not representative of the whole? Ditto iOS? I know you will chalk me up as another "fanboy"...