There's a 100% chance that everyone freaking out about people disabling pps from accounts not friended doesn't get that a contact method list doesn't mean that every method has to be available to every person. If you can pm or use AIM, you don't need to pp. Some people list plurk as a contact method meaning that they'd prefer to plot there WITH people they have added, while still not being put on the spot by people they don't want to deal with. Maybe they're willing to add anyone from their games, maybe they're more selective.

The point is that as long as there's at least one way to get ahold of someone OOCly (pm is actually the best to keep open, because we all have dw accounts), then there's literally no hardship and nothing to complain about.