Efficient reputation strategy…
I have tried the usual stuff. I just want to quickly get enough rep to be able to upvote, downvote, and comment without being annoyed by pernicious error messages.
Have you tried answering questions well and correctly?
It seems you've left out what you consider to be "the usual stuff" here.
If you don't put in the knowledge and time to answer well or craft clear questions, the community, aka the system, won't reward you with any rep.
If you're not doing either of these simple acts, why should you be allowed to upvote, or even downvote, other people's contribution and work?