It's fraud not spam, you never got to watch the fight after paying - https://ici.radio-canada.ca/recit-numerique/2140/adcenter-hy...
And 6 weeks ago it might have been ISIS spam or a link to a exe or phishing.
> and any site that accepts user-generated content is susceptible to it
This site doesn't have user-generated content/events/calendar, it's employee generated.