I am of course talking about gc 10 on the official site.
BTW gc 43 will eventually be released on partyhardcore.com. Why would they use the url as a watermark?
I dont think so, for example https://www.sinx.com/Naughty-Grandpa/movie/8961/horny-old-bastard-cums-on-sluts-pussy -> watermark http://naughtygrandpa.com which redirects you to https://www.sinx.com/Naughty-Grandpa. They will definitely not sell partyhardcore domain but they could easily create another redirect to sinx...
Eventually tainster will close and there will be only sinx. The reason is that sinx and tainster has the same content (i doesnt count licensed content from other sites) the only difference is that in tainster you got access to "all" (everyday they delete some old videos) content after subscription and sinx give you "club access" to 1500 videos from tainster library if you want anything else you must pay again.
Also why you would release party on tainster when on sinx you could charge for it another $35 or more on top of forced subscription to even buy that.