I Dream of Twilight modblog
Also I respectfully disagree with how, you think that Dave Polsky is only a writer that's been improving. Because, I feel that he's never made a truly bad episode, just one or two that I consider mediocre, "Spike At Your Service" and "Games Ponies Play". In terms of "Feeling Pinkie Keen" though, I thought that the comedy and character exchanges is hilarious, yet its story was just average, and had a poorly-executed moral.

I don’t even count Spike at your Service since Dave made the story. But it was ultimately Williams that wrote it. And Games Ponies Play is average as you can get. And the rushed ending wasn’t Dave’s fault. I actually agree that Feeling Pinkie Keen is entertaining in a few ways. I just still think it’s one of the weaker episodes of Season 1. Better then Boast Busters, Look Before You Sleep, and Owl’s Well That Ends Well overall. But probably somewhere in the 20-16 area in terms of where it places among all 26 episodes. Over the Barrel was better then Pinkie Keen but I think it still doesn’t crack into the Top 13 still. While in Season 3 his first somewhat good episode was Too Many PInkie Pies as it was probably the best Pinkie was portrayed since Party of One up until Pinkie Pride came along. Mixed feelings on Keep Calm and Flutter On, and I already stated my thing on Games Ponies Play in this same answer. While in Season 4 he’s done pretty darn well. Every one of his episodes were good in my opinion. Even the ones I have somewhat mixed feelings about with Daring Don’t. It just feels like to me he’s certainly improved