I understand everyone has their means of capturing the shot. I'm just pointing out the fact that you can get better images if you PP. Judging by those photos you posted on FB, they can look much better with some basic contrast and exposure adjustments. You used manual and didn't nail the exposure right, so go PP them and get the right exposure? Not trying to accuse anyone or anything, but I tend to think that people who say they never ever want to PP their shots are either plain lazy, or can't be bothered whether their shots look the best that they can be.
Yes, I agree. There are many reviews that talk about build quality and plastic lens mount etc. Both my lenses suffer from poor build quality and plastic mount, and nothing has happened yet. Take care of your equipment well and you should be fine.
The 55-250 may not be the sharpest lens around, but it definitely can get decent images, unless you're printing posters to put on buildings. If there's anything to complain about my 55-200 lens, it's the focusing speed at the longer focal lengths, and the max aperture. Definitely not the image quality.