All platforms already restrict content they allow users to post, including CL. People still seem to express themselves freely despite those restrictions.
That CL would make a vindictive stand in defense of sex trafficking specifically is just bizarre.
No, CL has had explicit notices posted regarding prostitution for a long time and has actively moderated for overt prostitution. You can't compare now, but if you compare ads on Craigslist to other personals / services websites like Backpage, Craigslist has been quite PG-13-rated for a long time and at least forces posters to be a bit more subtle. The "massage" section is actually mostly pleasantly legit in my experience, assuming you're not in a big city.
That CL would make a vindictive stand in defense of sex trafficking specifically is just bizarre.