I posted the same text on Facebook and Instagram and those sites kept it contained within the box, so I'm not sure what it is about the jr site that lets it do this. it's not isolated to only this blog article, it happens in other modules as well. I often modify the text myself after seeing it and change it to a shortened hotlink
I know our software is pretty dope, but when you compare us to a multi billion dollar website, it might be a tad unfair.
Why you see the problem is because it doesn't happen very often, although we see it occasionally.. It's really just a simple CSS fix. It is included in some of our skins.