I disagree - it could be that they are testing out the publishing system on Kongregate, or that they are simply lazy and trying to post games on Kongregate in 10 mins. It really doesnt matter - I see crap 5 min made games posted on Kongregate from all kinds of other tools - there's nothing special about doing it through Stencyl. As a matter of fact I would encourage this because
1) free advertising for stencyl -- folks will wonder why they are starting to see that splash screen and how can they make games
2) it builds confidence -- heck the folks doing this are probably really young kids who just want to see their name show up on a list. That's a GOOD THING. Crap games fall away pretty quickly, but everyone has to start somewhere.
3) putting arbitrary rules on how tutorials and other game resources are used would really put a squelch on anyone trying out the system.
4) It's really about your own frustration with seeing all those games show up on the 'whats new' in Stencyl and K. This is about YOUR behavior. It's easy to filter games for only folks you want to watch, and you can use the search function in K to find better games.
I can imagine a situation where a budding game builder tried out Stencyl and got all kinds of flaming for breaking some arbitrary rule on where and when they should post a game. They immediately decide this app is not for them and go download GameSalad or something. That would be really crappy.
Instead of saying "dont post training projects" you should view each and every one of those posts as an opportunity to encourage someone to make more and better games. Go to that post page and write comments like "awesome you got through the tutorial! Any way I can help you take the next step?"
So my feeling is cut out the negativity, go find someone to encourage, and learn to use lower case letters...
http://www.stencyl.com/help/viewArticle/49/