We have the Anchor and with it, the means to travel physically to the Fade. Heck, we can do it thrice in the course of the game.
So, would you not like to use that power and travel to the Golden City? Discover just what is in there.
Probably a bad idea considering what happened last time but I would still do It if given the option, I think.
Worst of the worst, you'll become an immortal horror with powers beyond human comprehension.
I would indeed. Not without taking extreme precautions though. The last time this happened, the Blight was unleashed and those who entered came back as darkspawn. I'd recommend a step-by-step approach, collecting and considering the knowledge gained by every step before taking the next. You can't be too careful with stuff like that. I wouldn't rule out the possibility of a retreat at some point.
if we got the option in a game, it would depend on the context. Most notably whether the presentation suggested "there is real extreme danger" or "the Chantry doesn't like it". The objection "You intrude on the Maker's home" would make me rather more determined to do it rather than less. I do not accept being denied something for no better reason than someone else believes I shouldn't have it.
In a way, I admire the ancient Magisters. Their goal was admirable, their motivations and methods were not.