I want to ask people to read it, play it, and see if they can find any bugs, missed items, or flaws in the rules. Is this a relevant question to ask on RPG.SE?
No, you shouldn't be asking that here - it'd go against a few points on our What types of questions should I avoid asking? page. Specifically, real questions have answers, which this one doesn't, and it's not the kind of question we field - it enters the realm of discussion. I'll quote two paragraphs from the beginning of the don't ask page:
You should only ask practical, answerable questions based on actual problems that you face. Chatty, open-ended questions diminish the usefulness of our site and push other questions off the front page.
If your motivation for asking the question is “I would like to participate in a discussion about ______”, then you should not be asking here. However, if your motivation is “I would like others to explain ______ to me”, then you are probably OK. (Discussions are of course welcome in our real time web chat.)
Set up a discussion board, a report system, or something else and use that to handle your playtest reports. If you want a discussion board, maybe try the Discourse beta, made by the same Jeff Attwood who cofounded Stack Exchange - I've tried it and it works pretty well.
But really: Stack Exchange would suck at handling this anyway.
The entire reason we have questions to avoid is because those are questions this system doesn't handle well. Stack Exchange chose its niche of Q&A, and it does that really well at the expense of sucking at everything else. There are other systems that better support the other stuff.
Here's why it'd suck at handling your playtest reports:
- The voting and accepted answer systems are not relevant to you. What is the point of having a negatively voted playtest report, or a positively voted one for that matter? If anything, they'll be a distraction. At its worst, it'd be discouraging people from giving you feedback, because they don't want to get downvoted / won't get votes / etc.
- If someone submits an individual playtest report, it would be helpful to launch into discussion on it, ask further questions, talk with others about particular points, etc. Our comments will not support doing that. Forums will.
- You do not need the community editing functions all that badly. They're not relevant.
So, really, you just need some other system that gives you what you need without the distractions of irrelevant Stack Exchange features.