Mail is fine if you use browser-based solutions. Nobody is talking about only sending plaintext emails? Wtf?
Why are they running so much stuff on wine?
Why are they upgrading their kernel every few weeks?
How does anyone think nautilus is good?
How does anyone think that Gimp/inkscape are better than affinity designer?
These are the things they find useful about linux? There's so much more that makes linux a powerful solution (e.g. great window managers like i3), or much better support for shell based workflows.