There's nothing wrong with monetizing content from the SCP wiki, it even says this on their site. Anyone can do with the content whatever they want. You could literally copy paste someones content, and that would be absolutely fine.

"You can share or repost anything from this site. You can copy-paste entire stories and articles in their entirety and repost them to your website. You can include them in any sort of compilations of creepypastas or stories."

"You can sell the remixes you make based on the SCP Foundation. However, keep in mind that you probably will not get rich off of them, because under Share-Alike, anyone can freely copy, use, or download your stuff, and you will have no legal recourse provided they also follow the terms of the license."

But technically I'm not even monetizing anything here, it's up to others to decide if it's worth tipping. If people don't think it's creative enough, then they're not forced to support it. This isn't like a Youtube channel where I put ads on the video or I add a paywall before people can access the content. Anyone can read my articles without having to pay for it.

I did make the mistake of not properly citing the original author/authors and adding the creative commons license to my articles, but now that I know this I will do this once I have enough resource credits again.

You can disagree with me by downvoting my posts, and try to take my earnings away, but that's just your opinion. Legally there's nothing wrong with what I'm doing once I update my articles.