On the same 25 years offers page, they are saying "APPLY FOR FINNAIR PLUS DINERS CLUB CARD AND EARN DOUBLE POINTS". If you click through it's the standard AY Diners info page, and I think the points shown are the same as usual (2,2,2.5,3 per € for the different tiers) - or have they been doubled to reach those amounts? There is no info at all about a doubled reward, or terms and conditions for the offer (how long this doubling applies for etc)... Sigh...