I am not gonna insult your intelligence by pretending this game is completely unrelated to the Psychometrics (predictions) game, but this one is greatly simplified so as to have more people participate, making it (hopefully) much more fun.

The game is an association and dissociation (as in deliberate, rational dissociation: not related to depersonalisation or derealisation) game.

These are the rules and ways to score points:

The aim
The aim is to end up with one set of traits or at least one clearly larger set and a much smaller one. This set should have as many traits as possible.

How many points you score with your one or two sets depends on a later round (which is largely irrelevant for now), but all I can say is that it requires fair/honest play.

Points in this (round of the) game
You get points for anyone using your superset (a combination of your two sets of traits) to continue the game. Anyone quoting your post to continue the game will amount to one point. You also get points for anyone showing agreement with your choice of set(s), shown by a "Thanks for this!".

Procedure: how to play and acquire points
In the beginning, I will list a few traits (10; adapted from the Psychometrics game).

All that is required is to make two sets (or just one) which together (or on its own) contain all traits (no duplicates: overlapping sets).

The first (and possibly only) set should contain those traits that are meaningful in the context of BP. In other words, you predict that they are likely to be somewhat essential for us (and others) with BP—or can be considered a contradiction for having BP. In short, traits we share or which we are unlikely to have.

The second set contains those traits which are meaningless indicators for BP: some will have them, others won't, with no clear (predicted) majority.

You have to remove one trait from one of your sets (that would be from the meaningless set) and you may add one. There is one requirement and an exception for added traits: they are not listed in the DSM as being a symptom of BP but you may combine symptoms so as to be considered one single (more restrictive) trait (e.g. distractibility due to a flight of ideas or racing thoughts).

If you don't, anyone quoting your sets may add one or two (but al least one; by removing just one, as usual). This may mean that for quite some time there are only 9 traits, but this means that the chances of having as many as possible in the first set are smaller.

Again, the aim is to end up with as many (meaningful) traits in the first set. Being sets, the order is irrelevant.

You may use the following headers in your post to separate traits (and select a trait to replace, including the new one, under another header):

Meaningful (share or shared absence)
...

Meaningless (only some would probably have them: no indicator)
...

Removed (the most meaningless)
... (only one)

Added
... (only one)

It is much like a card game. The actual value of the cards is, like in a card game, not known to others. The difference is that they are not known to you either. It's all about predictions. Another (answering) round is used to give you (possibly) the bulk of points.

Any questions? Finally actually sounds like fun?

I will list the traits once I heard from enough of you to determine whether the game is good as it is or needs simplification or otherwise needs to be changed/extended/restricted.

Edit:
To further elucidate an important point: when you quote someone's post, you (must) use their altered sets of traits (which traits are in which of the two is, however, completely up to you).

You may still give predictions in the ("old") Psychometrics (predictions) thread, in the way described there and with any traits adapted from those 10 questions or any used here.