SC representative should be on coinmarketcal to correct wrong event uploaded .
It seems most rumour buyers uses that site. Traffic is increasing, hence Sia should act .
I can't find an unfounded piece of news concerning SC on
https://coinmarketcal.com. The only mentioned upcoming event is about the TSO. You can always tag a piece of news as fake on that site, and I assume if enough people tag it as such, it will be removed.