Don't quote random rhetoric thrown around on this site. Inferring my post was about powerlifting vs bodybuilding is idiotic.
When it comes to fly exercise, I am yet to meet, or see anyone on this site who has a great chest from doing flys. All well and good the guys with big chests who are using flys more for ongoing development, but as a primary exercise I'm still doubtful.
I have no issue with decline or incline pressing. Don't be a fanboy with comprehension issues. I am completely against blanket statements that the flat bench is a shitty exercise when there really is little concrete proof that this is true.
I have been in so many gyms where every clown (on bench press Monday) wastes their time doing 5 different pressing variations, then get into the multistation to do their million crossovers.
And yes, it does matter if someone is benching 135 or 315. Someone benching 135 can't comment on what is and isn't a good exercise for their chest development; they don't have one yet.