There are a few ways to do this of course. A lot of media outlets have ways to notify them anonymously. There you can link back to sources and such. I'd recommend to not link back to KF since we're all part of the alt-hater-naytion. Or something. What we do have is a lot of sources and well documented sources.
What could be interesting is try to get them on something they would be interested in, an angle they'd buy into.
Such as: miscarriage of justice, pedophilia in the anime community, scams. Things that are actual crimes, and can be proven as crimes, and somehow carries public interest and is worthy of clicks. They all think about clicks.
If this was me, I'd approach for example the dallas morning news competitor, and present another side of the story. A lot of media functions on copy paste, so the more TIME you can save them. Either by f.eg. linking to a blog-post or something that's well pre-written that they can easily snag writing and sources from, that is a win. Journalists today don't really dig that deep unless they can, and they usually can't.
They want stories, not to play detective.
You also should start in the outskirts and let them try to hook more into the main story. So lets say we start off with: Local Anime Con Owner admits sexual impropriety live!
This would be interesting don't you think? important to time it with relevancy. Then they can go 'oh wait, that word animu, didn't we see that somewhere ?' most competitors keep an eye on each others stories and activity. Then maybe a ball rolls to some direction and one can casually place out things for it to bounce off as it heads off in a direction.