I'm not fussed if it gets taken down, in my own selfish corner I don't want to see anything outside of official media until I get my hands on it. I'll read some of the reviews from my trusted sources but not in depth, again, until after I've played it. I know people don't understand this and talking about spoilers in a movie context but it's about experience for me. I don't want to go in to playing the game feeling like I've already seen the opening few hours. Made that mistake before. Yes you can choose not to click on it but with such an anticipated title it's very difficult not to.
I've also mentioned before with this sort of thing, spoilers can come in all forms, things that weren't expected or announced, hidden items, we've seen that before in GT4, 5 and 6. And then the more regular but still exciting things to discover like the intro (always a big thing with GT games), the widebody kits and so on.
Everyone will obviously have a different feeling, I'm sure many just want to see everything and know everything before it comes out regardless of whether it will dampen the enjoyment of discovery and others will probably ban themselves from here and mute Gran Turismo hashtags on Twitter.