Those posts are in moderation. It's pretty simple really -
"Members are cautioned that branded words, people, and concepts are admissible so long as mentioning them isn't the reason for the post, or of a repetitive nature which we would define as marketing. Posts or links designed to generate revenue from any skiing related activity—the promotion or sale of merchandise, instruction, travel, etc., are treated as affiliate relationships and we will negotiate them case-by-case. Members are encouraged to use their own words and experience to communicate, using links to images and off-site resources in the public domain as needed to support their personal ideas, theories and opinions."