the rewards decrease is normal, as time passes the frequency goes down...
the team NEED to make a HUGE marketing... no news from team since a time.
I think the last update that they provided was on 24th May
https://magnetwork.io/2018/05/24/merchant-tools-update-beta-0-2/I just generally check the blog and here so not sure if they provide any kind of update on any other platform but I do agree that MAG needs marketing.
Fair enough, can't expect them to post news every day or even every week. Got to give them some slack.