I see what you mean but in fact the ads are acting only on persons not on accounts, so if one person is appearing online with several accounts the marketing effect of the ad is only once on that person, independently if he/she appears with his main account or his aliases. No money loss for Jumbo.
Napo, Napo, Napo...come on, dude...get your focus and mind in gear. Lord Invader's point, I believe, is that the game-player base would be directly affected and would diminish dramatically if any kind of fee were imposed. Jumbo is able to sell "ad space" because they can provide the numbers of people online at varying times of day...this is the only way that they can determine and JUSTIFY to the ad space purchaser the value of that ad space. There are European advertisers as well as American, and so forth...this is largely going to be based upon the geographic location of the person logging on–the banner ads which you personally receive...are they usually Swiss based company ads, or are you seeing ads for American companies?
At any rate, if a premium were imposed and suddenly you had a mass exodus of a few hundred players leaving because they refuse to open an account...then the advertisers would also pull out and refuse to buy a space, or at least, they would demand a significant reduction in fees. As you yourself point out, the advertisers are interested in numbers, not accounts, but if Jumbo loses its player base, then they are sunk. This is most likely another reason why Jumbo does not care about the alias issue...the more accounts that they have is a start of their package when trying to sell ad space...of course, the login logs are the most vital because they validate how many players are online, when, and how often. So, Jumbo wins even if a person has 100 accounts...such a person will most likely be logging on frequently.
Doing a complete global reset of all accounts, and then attempting to do some kind of purge may be great for us, but it may prove devastating to Jumbos meager ad income for their Stratego site.
Now, go have a coke and a smile, and get Trickz to flip you more rap...that was a rather funny and pathetic video all at once, but I loved how you handled him...that was terrific, Napo!