You can tell members of DT staff and “simple” users of the forum apart easily: DT staff have an additional symbol - green & white, representing the nautilus - in the bottom right-hand corner of their profile picture. You can also review the Trust Level of a user by clicking on their profile picture (potentially twice; and selecting Expand); DT staff are at Trust Level “leader” and are marked as moderators. Non-staff can (to the best of my knowledge) only reach Trust Level “regular”.
However, it’s still the case that if you post a URL with which you are having trouble, helpful ppl in the forum will try it for themselves and are more likely to be able to assist you 