It's not against the site rule to troll a player if you are a fan of the team, otherwise many will feel handicapped and fearful when critiquing a player. And that is not the spirit of the site. On CTB every fan has the freedom to express his or her opinions & the freedom to debate (without resorting to personal attacks, of course).
There is a newish rule regarding excessive trolling by a team's own fan, but overall his posts do not meet the threshold as he also posts on a variety of other topics.
I highly recommend that you (or anyone else) who doesn't like to read his posts or anyone elses' posts to use the ignore button. That is what it is made for, and works great, even on quoted posts. I hope this suggestion is not shrugged off because the feature works very well, and took some decent amount of effort to develop.
BTW next time if you have a beef with a particular member, please be sure to contact the mods or that member directly instead of posting your complaint publicly on the forum, as that could constitute trolling a particular user, which is certainly against the site rules. Thanks in advance.