One of the things I appreciate about 3speak is that it seems dedicated to keeping NSFW content as properly marked NSFW. That may seem silly to some, but it's more important than a lot of people realize. There are other video sites which I absolutely cannot view from work because they're not good about keeping the NSFW content marked properly, which means I can't trust what might come up on their page, which means I generally can't use the site.
I appreciate the good work 3speak is doing in this space.