If i counted correctly, there are currently 72 game moderators.
This number does not include Higher positions (e.g. Leader) nor lower positions (e.g. Report Moderator).
So they actually have quite the amount of staff to work with.
However, there are some factors which have to be considered.
These are:
-Timezones or generally which Time it is
-(Almost) every staff member of TruckersMP is a volunteer
-The amount of in-game reports/work all around the entire map
-Private life
The best thing to do in such cases is to collect evidence (e.g. video),
player information and to report them viá the TruckersMP website reporting system. (https://truckersmp.com/reports)
Alternatively you can use the in-game reporting system, but it's not guaranteed that it will be looked at due to the (often)
sheer amount of reports coming in.
I hope i was able to help a little bit.
Best Regards,
Zysto