Does this include the Quest sandpit
It used to.
No, seriously, it did. Then I realised that those weren't even fit for publication in the MAIN Quest site. I realised that way insan- er, extreme dedication lied, and I just deleted all Quest games and re-downloaded all the main ones.
I do some very basic filtering on Playfic. Check the source. If it looks like a modicum of effort went into the game, and if there's a "end the story" phrase, then hey, why not.
I'm fine with digging the S**t, because there's something shiny in there. S**t washes off, and the shine stays on. Maybe it's a forgotten or overlooked gem (in the wake of Coloratura no one seems to remember Legion, which is very interesting indeed), or a modest but thoroughly enjoyable puzzler (I enjoy "A Day At The Iachini House" probably more than I should, but hey, what are you gonna do), or an unfinished experiment (Lex).
As for not doing some games any favours this way... there was a lengthy discussion about something similar in IntFiction some time ago when a bot added every Quest game into IFDB automatically (non-sandpit). Because of the very thing you're talking about now - that place is a very free environment, which encourages people to just do stuff and get immediate feedback, and most of the authors don't even WANT those games being published in IFDB,
I personally think that if something is released - and whether or not is fit for release is the author's prerogative and judgement - then it should be archived. Who knows what tomorrow will bring. Who knows how interesting it'll be to play through the early crappy games of a Steve Meretzky in the making! Not going to happen any time soon, if ever, but hey! Glass half full! And to make it fair, I make it no distinction, within my archive. The games are there. If you want to dive in, you should expect the worst along with the best. Recommended use is to browse for something you've read about in IFDB, or some such. Or, let's say you want a HUGE collection of Inform (possibly Glulx too) games to play on your new mobile? You can download them all as ZIP...
...although MEGA is so slow in zipping multiple files you're better off asking me; I'll upload a ZIP of what you need, then you can just download it.
So, hey. I will leave IFDB to be the museum; the Louvre; the shiny catalog. I'm just the dusty old warehouse where you can find the stuff.