That occurred to me as well but thought at least I'd cut them more flush, maybe helping them look less like something that was stolen!I can only guess it was an attempt to further weatherproof the ports. A better option would be to use plugs, like these:
View attachment 231415
I used to crimp some RJ-45 males on a few occassions to blank off some female ports (if not crimped the contacts won't let you fully seat them).
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