Personally I was never impressed with the Dimcoin team or Dimcoin itself but I stopped short of calling them a scam, I preferred to refer of them as lazy instead because like other projects they were highly active when seeking ICO investment but their development since the ICO ended is not exactly impressive. The moment you make a post questioning their progress on their official thread, several supporters decide to post die-hard supportive messages backing up Dimcoin and its team rather than look at the actual issue. From what I see you have received your tokens so that is a good thing. As for them being a scam, I still doubt they are but let it play out and see what happens in future.
This is one of the best projects I supported in 2017 but up to now it is not yet clear if they are following the published roadmap. There are updates from time to time but I think they are very much behind with the schedule. I am not so sure what is happening with the hybrid exchange they should have established. I am still believing on them and I am hoping that soon they can fast-track their accomplishments. DIM can be a good project and if the team behind can move fast and professionally this has a good potential to be a good platform.