The forum is still open to posts, it's not locked. You probably looked at the locked icon below, it's in a icon guide box.
Almost all the root methods I have tried appeared to work, but they don't stick after reboot, and the phone doesn't seem to have the rooted installed correctly. To some there is not to much purpose pushing a phone on when it's over 2 years old.
One thing I can say is I managed to enter the stock recovery mode, so it might be possible to extract and modify it to install a custom recovery where root could be force installed, or a ROM for that matter.
Sure there is potential, but there is a small margin that could unleash that. There is a huge factor of unknown in the phone. I take a quick look at it over the week.