The default instant messenger Pidgin should have the option to use GnuPG (OpenPGP standard) to encrypt messages.

Pidgin supports OTR, but OpenPGP can be used for offline messages, too. And beside that: there are many clients out there, which only support OpenPGP encryption but not OTR.

We need more encryption. We tempt users to use Pidgin (because "it was there"). So we should provide all possible ways, to ease these encryption stuff up for everyone. It's difficult for most of the users, and additional compatibility problems are not helpful.

Off The Record (OTR) is a really user-friendly way to encrypt instant messaging.

OTR shipped as an optional plugin for Pidgin, but many users do not know what it is or how to enable it.
Since its advantage is clear and it works without much user interaction (especially it does not harm people on the other side not using OTR), it would be worth enabling it by default.

Okay, maybe the appearance on screen could be a little improved, but the rest is just fine... ;-)

Social networking platforms have become a broad medium for communication and participation today. Unfortunately existing solutions do not adhere to open source standards and expect users to abandon certain rights. Facebook, for example, offers the possibility to start a profile for organisations. Every organisation has access to extensive data about the behaviour of fans and followers as soon as they react to a certain item the organisation has posted. This of course is very democratic in a way. Unfortunately only in one direction as users can neither analyse the behaviour of any organaisation they follow nor control the amount of data that is submitted to the organisation.

Because of this, social networking platforms have become massive marketing tools as behaviour data can be sorted by several characteristics like gender, location and probably even things like political orientation etc.

Another problem is the fact that these platforms do not offer any possibility to extend anonymity and security by offering e.g. encryption tools.

This is Blue Sky dreaming here, but that's still a brainstorm, no?

I'd love a truly well encrypted and secure p2p engine built into Ubuntu so that all people on the planet could safely and reliably communicate without government interaction or monitoring. I'd like it if sharing files on this network worked either by darknet, or in a broader way via friend sharing (offering to automagically display files to friends of friends).

This would be a giant step towards liberty and freedom globally, at the infrastructure level.