Panel Station was nice in the initial stage but it turns out be worst. Before if a survey is screen out they use to credit minimal point but now it is credit only in the case 2 or 3 survey after and user is blocked without any particular reason, stating that it might be due to quality concern, most of my friends user id was locked in such way.
This user lock is usually occurred after getting good number of point or after redemption. So that point are obtained to user. It is really bad.