Hello thanks for the comment!
Witnesses have only the power to decide about the interest of the savings in hbd! And for that i heard about no meetings you can see that many witnesses have divergence about this opinion and set different values. If there is a meeting it is through personal dms which i am not aware of. About 99% of hive decisions is with the community. You can check all hive proposals in here: https://peakd.com/proposals and vote in them. All decisions are made here. Although maybe you are mentioning about personal projects of some witnesses in their own anti abuse point of view… those are personal projects from some witnesses and also people that aren’t.