Type your comment> @hackgineer said:
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My question is how do I give respect to someone if they helped me out? I can’t seem to figure out where or how I do that to a user account.
Did you try finding the user account in hackthebox site (not the forum) ?
If you click on “Member Finder” in the top right corner, just fill in the name and search for user… then, in his profile the first button under his name is: “Give Respect”
Hope it helps 
respect