Advertising a business on your advertisement space does not imply that the owner of the advertisement space is in any way liable or condoning any shady shit the advertiser is engaging in.
Getting off topic here, but when you accept money in exchange for advertising for a business, you absolutely do bear some of the responsibility if that business is a scam. You're helping them scam people. Very basic logic here.
I wouldnt have come in and commented if the issue wasnt already being raised here.
And yes, I partly agree with you, which is why I think it is completely fine for Fortunejack sig campaign participants to show eagerness in busting or proving any scam accusations that is being made against the very entity that they have rented their signature spaces to.
I don't see the problem here.