First, I haven't actually found many of the Daz Gen3 stuff all that interesting. There has been one or two things that caught my eye but I have seen some fantastic characters for them at RDNA and Rendo...I'm really pleased that Syd and some of the others at RDNA are doing stuff for Gen3.I haven't bought any DAZ content in like 4 months and I guess most of the reason is I am annoyed that I can't use G3 in Poser plus recent content is meh. But now I am really bummed out as Stonemason made a beautiful environment that is only usable in DAZ studio. He is one of my favorite artists and I love his work so I really wonder why he doesn't support Poser anymore.
Second...over at RDNA there was a thread where Stonemason posted about how it wasn't worth it and he found Poser difficult/annoying to work with. He posted after speculation in the thread about how Daz were deliberately asking vendors to stop doing Poser stuff. The reality is that some vendors find Poser difficult to work with.
On a side note: Recently some very kind people were creating outfits for my Diva morph...it wasn't possible to rig these in Poser as they were Diva size not Dawn size but I was able to use reverse source to rig them in DS and also to provide a way to get them into Poser. I'm not sure if there is a way to get them into Poser when objects have been modeled on a morph. One of my frustrations with Poser is so much of what I needed to do I needed to get scripts for like Netherwork's ToyBox(great tool by the way) whereas in DS I don't need to get anything else to do these things. Some of this is possibly due to my lack of knowledge of Poser and it may well be that there are ways to do these things that I just don't know. I'm not trying to criticize or say one program is better than the other here just that some people find it easier to work with one and not the other.