Since some people like to tell on Twitter that no-one uses Eclipse IDE or similar "alternative facts", I've measured the number of downloads of the last releases to counter some mis-impressions.
* 2018-09: 3130837 total installs (~34000/day for 3 months)
* 2018-12: 4233125 total installs (~47000/day for 3 months)
* 2019-03: 278384 total installs (~55000/day for 5 days)
The trends is clearly positive.
It's also worth noting that the numbers we see are consistent with the number we used to see before the move to quarterly release. So there seems to be no major loss in moving to quarterly release, and the user community seems to accept them very well.
It also seems to comfort an impression we can see from other external surveys that Eclipse IDE seems to not be loosing users anymore. That's a good thing that I think we can mostly attribute to good work profiting to end-users and developing enhancement that are very relevant to them.