1. I went from zero to 100.
2. MAGA
3. MAGA
4. I see it as more of a museum archive, which still happens to be open. Still neat to pop in every now and then.
5. Pokemon Go was fun. As for Pokemon in general, I actually still need to learn Gen 7. I know I used to be the anime guy, I kinda initially fell out of touch after Hoenn mainly due to life and having limited internet access going away for a year as well as other interests replacing them. But, I actually did have a lot of free time several years back and did a marathon/catch-up of the anime. So it was when Gen 6 (Kalos) was just beginning so Gen 4 and 5 were completely new to me, anime-wise. I knew all the Pokes, but knew little to nothing of Ash's journey.
Diamond and Pearl actually I think was a really good generation in the anime and I'd even go as far as saying it was the best (though haven't seen 6 or 7). The writing and character development was top tier. It's kind of unfortunate and hard to believe that's where I initially fell out, but it actually paid off being able to watch it all at once.