Can DirectAdmin developers do some like this? https://requests.whmcs.com – let their customers to vote about new most requested features/changes in DA?
No, please don't. I hate requests.whmcs.com and never use it. Also, it is not needed. you can just post a feature request in http://forum.directadmin.com/forumdisplay.php?f=8 and add a vote function to it your self. This forum support posts with voting.
There aro so so many requests, votings etc. but no ones take care about that... People should be able to say what they would like to see in DirectAdmin and others should be able to say Yes, that is great idea, I would like it too or No, don't do that. Feature request voting website like https://requests.whmcs.com/ make it so easy and transparent.