Make suggestions on dashboard more relevant

[kytrinyx]

From @mfeckie in #1654

It would be great when being asked to help out others by providing feedback to limit the submissions to ones made more recently. Something along the lines of staleness, like user not logged for x days , weeks, months and/or submission greater than x days old. At the moment I get asked to provide feedback on submissions > 6 months old, which probably means that the submitter is no longer interested

[kytrinyx]

I think that we should filter out everything

• that is older than 3 months
• where a user hasn't logged in for 6 weeks

I'm working on a different approach to address the problem of submissions getting that old (without receiving feedback) in the first place.

[kytrinyx]

We've replaced this feature with the 5-a-day feature.