I have been following the voting process for about a week now (quite intensively I would say). Perhaps I am wrong but I have the idea that users that have a reputation of 65+ are upvoted mindlessly, just because they have a large reputation. Of course, they have not earned this reputation for nothing, but voting seems to become degraded if rep count is the only thing that counts.
Perhaps the HF19 fork scheduled for tomorrow 20 June 2017 will change this behaviour. Until then, join the wisdom of the crowd.