Thanks for your detailed answers. I've started posting comments in new features I like and dislike with +1's and my appreciation without being able to vote for them

I find this limitation very penalising and think it's blocking the whole feature system.
it forces people to only vote on the features that they feel are important, and allows those features to "rise" to the top. Second, it helps prevent fraudulent voting, and vote spamming.
I've voted for all the feature requests I think are important and now can't vote for any new feature requests that I find important

I also am unable to post new feature requests because you have to vote for your own feature requests
I still don't understand what you call fraudulent voting or spamming. Saying you like a feature is not fraudelent nor spamming as you can only vote once for each feature you like and this limitation does not stop people from creating multiple accounts.
I basicaly want to say yes to all the features I like and want anyone who likes my feature requests to vote for them.
As I have already said before, if someone votes for all the features, it won't change their order so will not be of importance.
Limiting the number of votes [...] makes it easy to see which feature requests the community is banding together to support
Preventing people from voting for features they like means you can't tell what features the community rearly wants.
If you rearly want to have a system that allows people to say which features are most important to them, go a step further, allow an unlimited number of "I like's" and allow only 5 "I love's" per month. This way you will get both the number of people who like a feature and the number of people who find a feature rearly important.
Forcing people to come back in two months time means they might forget about the features that liked and WILL force them to participate alot less !
Maybe cPanel has decided they don't want to work so much on integrating new features, if this is the case please let us know instead of trying to push the main feature requests participants away.