Personally I don't believe in 加精 unless the post is an unbiased and informative that people who come here to visit find useful.
On most of the sites out there, a post that was 加精'ed is because it is popular due to a lot of "civilized" debates and discussions on them. I would suggest we do it if there is over 30 (a number that is up to debated ) unique users participate on a thread (otherwise most threads like those in 渥太华论坛 are all 加精).
One person's suggestion does not make a post sticky (加精).
P.S. 寒冬冷, this post is not targeting you.