Well, I mean, other than the fact that that page is deliberately clowning people. #5+McLemore for #3+Okafor is nothing short of absolutely silly.
First of all, we can't trade McLemore, except for in a sign-and-trade. And since we'd have to tell Philly who to pick for us, and pick the right player for Philly, we'd have to have the whole thing set up before the draft - which would mean that McLemore would have to agree to a sign-and-trade before the draft. Which is before the free agent period and therefore collusion. Not to say that collusion doesn't happen, but it would be dreadfully obvious evidence of collusion. And we might get the Minnesota treatment and have future draft picks taken away by the league as punishment. So that's strike one.
On top of that, why in the world would Philly set up a sign-and-trade for McLemore? They could just sign him outright. What, are they worried about us and our full stable of shooting guards matching on Ben McLemore? Not gonna happen. Strike two.
And then, there's the whole What Does Philly Get Out Of It? angle. Strike two already suggests that they wouldn't have to burn draft position to get McLemore. So, they're dumping Okafor, an at-least-somewhat-talented kid on a rookie deal? And they're PAYING in draft position to do it? Philly may well be trying to figure out what they can get for Okafor, but I'm pretty sure that moving down in the draft is not what they're looking for. It's not like Okafor's $5M next year and $6.3M the following year are going to be pushing Philly over the cap. Would Philly trade Okafor for +10 spots in the draft? Maybe. Would they trade him for -2 spots? Bzzzzt! Strike three!