I am playing Warlight since 2012. I had a small break, and 2 weeks ago I decided to make a comeback to this game. Now I am looking for a clan, which is able to learn me a couple of new tactics. Also I'd like to learn how to cooperate in constant team, I played team games only occasionally.
So only seek out clan leaders as sources? That's a rather limited approach and one that's likely to give you inaccurate data as there are some clan leaders that love promoting misperceptions about their clan and others and as clan leaders generally don't have the breadth of information you would receive by talking to the average member. At the very least, this thread helps the OP ensure that they're not missing some critical information- for example, you likely would not have brought up the Colonel issue and probably (like any clan leader) painted a little bit of a rosy picture of your clan. Members, ex-members, and players in the community at large can offer quite a bit of valuable information.
There's also the issue of repeated information. I, for one, would have some very specific things I would seek in a clan. I could PM a few clan leaders (and have to narrow down my list without really having enough information) with the same somewhat lengthy message, so they all receive the same information. But their responses wouldn't create the same sort of extensive dialogue that would occur on a thread like this, making me potentially miss the best option.
In any case, you could propose some alternative communication medium for virtually everything that occurs on this forum. For example, instead of trying to make yourself look cool by giving flawed advice that only clutters the threads and does a disservice to the OP, you could simply PM the OP and tell them how you feel about people using the Clans forum the way it was probably intended to be.
Ironically the biggest clutter in these threads is people like you coming in to give advice that wasn't asked for and making it tougher for the OP to get the information they want instead of your personal opinion on how the forums should operate.