Perpetual license holders currently pay $30 for 12 months access to support and downloads whereas standard license holders pay $25 every 6 months. For those perpetual license holders who wish to use the service then converting the license is probably cheaper than paying for the service independently (if we chose to do that). It's only an extra $20 a year or $1.67 a month.
Lifetime license holders continue to get support and downloads for free.
We have no desire to break apart the software and offer a tiered version to different license holders. There is no desire to withhold features from anyone and this is an important distinction as the new spam service is a service, not a feature. We're going to have to maintain several servers, pay for the bandwidth, run and maintain back-ups, deal with IP removal requests, etc, which all incurs cost.
Ultimately, it is not an essential service for some and no compunction to use it. It does show, however, that we are committed to tackling the spam issue that plagues many customers.
May I also add that the IP.Board 3.0.2 download zip will be the same for standard, perpetual and lifetime license holders. We're not removing code for anyone.