Hello,
I have a couple of suggestions for the party organisations features, but they are seperate of each other (ie. if one is implemented, the other one isn't important)
1. First cull all inactive members, and repeat regularly.
2. My second idea could either replace the party organisation feature, or be a new seperate feature. Maybe a new 'party category' feature, which has a limited numbers of broad-based categories such as 'socialist', 'conservative', 'liberal', 'green', 'religious', 'regionalist' etc and each party can join just one grouping. This will create international party groupings. I think this feature will aid international relations between parties. It will make it easier to know who to support and communicate with in other countries. At the moment, when I think about establishing relations with parties in other countries, I have to go on their page, look at all their political positions, look at the bills they propose, just to decide whether they might be open to working with my party.
If you look at the EU PArliament for example, all national parties (and there are loads of them) just join one of around 8 EU groups - one for socialists, one for conservatives, one for eurosceptics, one for greens etc. I just think it would be an fun feature that could grow more interesting international alliances between parties.