Hi,
Thanks for using Community Events and glad your users are using it so much!
Do the published entries roll-off at some point in time?
It should only show future events starting with the closest event first and ordered from there. Is that not how it shows for you?
That is good idea to filer the Event List for an enhancement to the Community Events plugin. I do not have any coding to do that, but if you would like to request that feature please head to our UserVoice Page and add your own or upvote that feature as they will increase the chances of it being added to a future version.
http://tribe.uservoice.com/forums/195723-feature-ideas
Let me know if you have any follow up questions.
Thanks