Crimes committed on or for social media (whether for likes or just by negligence, ie, distracted by your app while driving) should automatically get an additional sentence. Same idea as hate crimes, just for social media.
Sounds like something that could be easily abused for cracking down on filming police or similar. Filming ICE agents arresting someone and posting on tiktok? "obstruction of justice", plus they're obviously doing it "for social media". Same for whistleblowers or security researchers.
You don't need to convince them that the penalty is high, you need to convince them that the risk is high.
On top of that, people are less likely to know whether there is even a law against those things since it's much less intuitively obvious.
What you need to do is make them understand that it's dangerous, not to make them understand that it's illegal. People don't care about penalties unless they expect to be caught and this is one of the things where it's hard to consistently catch people in the act.