This new betfair lark doesn't cut it with me. Here is an extract from a poker blog with regards to people sitting out and storing information. Surely it is in betfair's interests to stop this rather than suggest people simply don't play. In which business is it sensible to say to a customer go away we rather have a non paying customer?
Further to your comments below, please be advised that we do have a system in place which automatically kicks a player who has sat out for a number of hands off that table. This being said, we are unable to prevent players accessing tables and sitting out completely as we are not to know whether they are sitting out genuinely or as you claim to gather information.
A suggestion would be for you to use the player notes function and take a note of the players you suspect of doing this. That way you can choose not to play these players if you wish and none of your information can then be gathered.
Please do not hesitate to contact us if you have any further enquiries.