Care to give one example that wasn't FUD? Every apple device I have ever bought was first generation, day one release. I have never had an issue. And that's going back to 1987. No one I know has ever had an issue.
If a tiny minority of people suffer an issue, then this is obviously a bath/manufacture/environmental issue, but a design flaw. Every rechargeable device on the planet can take a bit more charge once it says "100%", always have, always will.