Today, 1:49 AM · 114 replies and 1694 views.
I feel the OPs pain.
In open these people will always exist, even if the C&P is ramped up. See the million page Open thread for whether this is a good or bad thing.
If you play in Open, accept this (I agree completely it is Bad Form) and always work within the rules to make it hard for them.
In this case stick below 100.
Trigger warning:- Maybe learn from your mistakes? This has been unjustly been simplified to the derogatory "git gud" but hard lessons are the best learned ones.