How to Clear or Remove the Recent file list in mobile apps

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Yes, it is, for community, i.e. user to user, support. As stated before...

Tickets should really be for personal issues and personal support.
For generic issues it is better to address these in fora.

All issues should have a ticket if you want an official response from Dropbox. It is the only official method of contacting Dropbox for support related issues.

that they ignore complaints from the community, and that they don't care at all.

Simply not true. A Dropboxer has already replied to this thread multiple times. You've made your suggestions and they were passed on to the appropriate team(s). That does not guarantee action. When and if Dropbox decides to act on these suggestions is up to them.

Submitting a ticket after dropbox so strongly ignoring the user community is off course pointless.

Again, the community was not ignored. A response was given by a Dropboxer. If you feel opening a ticket is pointless then that is, of course, your opinion, but as stated before, it is the only official method of contacting Dropbox. The forums are a community primarily for user to user support.

Do you get paid for your role???? I honestly don't believe one would do this for charity.

As has been stated in the past, again, Super Users are users just like yourself. We are not part of the Dropbox team nor are we compensated for what we do here. Some of us are Pro users while others are Basic (i.e. free) users. We're no different from everyone else here other than the fact that we have an extensive knowledge of the product and have chosen to help others when we can. It's our way to give back to the community. Dropbox has simply recognized that by giving us the Super User tag. And questions pertaining to this can be directed to the Dropboxer Ed G., by opening a ticket, of course.