I would agree that Ivermectin is worth considering for treatments. The problem with discussions of it in the context of vaccine discussions is that there are anti-vax propagandists and their followers who promote it as the alternative to the vaccine. This is comparing treatment (during infection) with prevention (to help build antibodies before infection, and thereby become less of a danger to others). Thus what's best for a community is to help them develop antibodies without having to get COVID. Those who promote ivermectin are often promoting an option to avoid vaccines, thereby putting others in danger. And though you can get COVID after vaccination, you are less likely in that case to seriously suffer, and would have those minor symptoms for a brief period, and thereby would be less likely to spread the virus while infected.