I really do see your point. You have great experience with svn but ...
While I really love ISPConfig 3 the "environment around" the Core seams to be outdated.
Let me just list my impressions from my point of view as a systems architect not as a programmer.
You take following facts into consideration:
- ISPConfig is open-source
- people are willing to help improve ISPConfig (my impression in the forum)
- Bugtracker Flyspray is discontinued
- SVN is outdated (sorry, my personal opinion. do not take it the wrong way)
- the Wiki is not an open wiki
- vBulletin is a pain for me
- UI is not outdated but not 100% Web 2.0 (http://www.howtoforge.com/forums/showthread.php?t=55442)
That leads me to the following conclusions:
- GitHub hosting would be totally free forever (I know sourceforge is free as well);
- <see other points>
- Bugzilla/MantisBT, maybe Trac are considered the "standards"; you need to abandon discontinued software - One example: I am not able to edit my own feature requests.
- GitHub would lower the threshold to contribute (one click for a fork) -> more forking by external contributors
- use a wiki software to let people contribute to the wiki -> you can search the wiki and do not need to search the forum and the other resources you provide on the website
- vBulletin + the subforum-style at howtoforge.com makes it hard to search at least for me (is anyone with me on that?)
- The new skin "larry" of Roundcube 0.8 beta totally blows me away.I am a sucker for simplicity. Would be great to have a matching skin for ISPConfig. Maybe with good collaboration it can be possible
After all this critique I need to emphasize that I came from Plesk, WHM and Confixx and they are no match to ISPConfig.
I am ready to contribute to a move to a more modern environment for ISPConfig if you want my help.
Would be great to get a few replies to this post.