It's a risk we all take, whether we are posting content here ourselves or if someone leeches it to share elsewhere.
The admins/models may see it and send a take down notice to the mods/admins here at simpcity.
I imagine the team here at simpcity just honour the DMCA and say no more about it?
In terms of punishment/fallout from your actions, in the case of onlyfans content, if the model admin can identify you as the leaker of their work, then they will just ban you/cancel your subscription.
On a rare occasion they may report you directly to onlyfans and they will cancel your entire account.