I'm predicting nothing because it's totally pointless.
You may as well tell all those doing the predictor thing to have a bet on their 50 game (or whatever it is) accumulator. And then another bet after they get one of the results wrong on Saturday etc etc. I wonder how many predicted Boro to lose to Charlton and Rotherham and Hull to draw with MK Franchise and Forest? I also expect that their predictions include the same teams beating "better" sides than those and I'd happily bet that nobody will get anywhere near predicting all the results correctly.
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You're right about the success rate ... see mine above it's little better than 50% but it is (loosely) swings and roundabouts and it kind of evens itself out to some extent.
These things are always going to be dynamic so will change on the fly.
I have fun with it and it's more a 'what if' than a predictor, just seeing what needs to be done, how it might be done rather than nailing anything to a wall and saying that's how it will end. I get the sense that most having a stab at it do the same