I asked Stars for some further infos and got this mail today:
Thank you for contacting us. Your email was escalated to me as a
member of the PokerStars Game Security team.
As you may already know, we barred a group of players who
breached our Terms of Service through the use of automation
software (bots). Our privacy policy applies even to players who
breach our Terms of Service.
We recently obtained legal advice on this very issue. We are
regulated on this issue by the Data Protection Act (Isle of Man,
2002) which you can read online here:
http://www.gov.im/odps/legislation/welcome.xml
Our lawyers advised that we cannot disclose User IDs in the
context of fraud on PokerStars. If a law enforcement agency
wishes to investigate this situation further, then naturally
PokerStars will cooperate in accordance with the regulatory
regime that we operate under.
I have checked your account and can confirm that you received the
correct compensatory credit.
PokerStars redistributed a total of $80,744 to the opponents of
the bots, which represents the total amount won by the bots
through game play. This money was divided amongst those players
who played at least 5,000 hands against the bots in proportion to
the number of hands played and the bots' profits at each stake
they played a statistically significant number of hands (25c/50c,
50c/$1, $1/$2).
Subsequently, as a result of the bots' average profits on a per
stake basis, players were due the following credits:
25c/50c: $1.5622/1000 hands
50c/$1: $2.4123/1000 hands
$1/$2: $6.8214/1000 hands
You were involved in the following number of hands against the
bots:
25c/50c: 440
50c/$1: 8735
$1/$2: 38
Thus, you were due a credit of 440*1.5622/1000 + 8735*2.4123/1000
+ 38*6.8214/1000 or $22.02, which was credited to your account
the morning of August 24th (PokerStars server time).
PokerStars chose to implement this compensation method because it
distributes the profit made by bots in as fair a way as possible
and means that the sums received by players are meaningful. If we
were to compensate based on actual losses to the accounts in
question, this would be unfair to the winning players.
PokerStars takes its commitment to enforcing our game rules very
seriously, and will continue to do so, both behind the scenes
with our tools (which are under constant review and improvement),
and in response to player-generated suspicions. Already, we are
using what we learned in this case to improve our detection
methods for the future.
I trust that this email clarifies our position on the matter, but
if you have further queries, please feel free to contact us at
gamesecurity@pokerstars.com.