I think I may have misunderstood your original post. I use Chrome on my phone to access the forums. I may use the forum in the DH app for quick looks, but usually I use Chrome browser if I'm going to be replying to people or posting screenshots. What kind of troubles are you having?
The post I quoted was one about linking Forum profile with DH profile, which I think I now realize you weren't talking about. The problem with that is the technology, not posting limits.