If you can help or wish to become one of the maintainers - just start helping. You can find more RVM related projects at RVM Github organization.
Community Maintained Project
RVM is maintained and supported by the community via issue trackers and pull requests:
In the past the community did maintain IRC presence, there might be still people there answering questions, but the nature of IRC can lead to lost communication and is not reliable, please use github issues to report problems.