In order to get a better idea of “what it’s like to be at the game,” the Post’s online sports department is testing out a Nationals Park Twitter mashup during this weekend’s home series against the Braves. If you want to participate, you can hashtag your tweets from the game with #natswp and #[section number] — now, your report that “the guy next to me is really scarfing those nachos, gross #natswp #404” can be spread even farther around the interwebs! It’s an interesting idea, to be sure, but the commenters on the Nationals Journal post which announced the project offer up some legitimate questions, ones this writer was also thinking about. What if the system was overloaded with rival tweets or notes from people who aren’t even at the ballpark? How many people in attendance even know what Twitter is or how to use it? What about the fact that we’re willing to bet that less than 140 characters is hardly enough to truly describe the hardball ineptitude that could be on display? Finally: is there really anything to gain from this? We’ll see — until the Post makes a decision to go live with the mashup on a consistent basis or not, you can check out the aggregate here.