Wikipedia wasn't perfectly neutral here but released truthful information in contrast to many media outlets, who were just as partisan. The reason why many people craved balance and so they made interna of the DNC public.

I have not seen any evidence of Russian interference, but they probably tried. I don't think they got any talking points across to be honest.

This non profit had proof of war crimes and maybe that influenced their disposition? Understandable in my opinion.

In general I am suspect of anyone pointing fingers at others to build a profile. Trump could do that and some people understood that it was holding up a mirror. That is no Trump endorsement and the Russian story an excuse. I believe internal leaks are much more likely.