@raging: I do not think I know you. But: It is possible to teach. But you indeed need to ask them first if they want to learn. Then all is easy.
You can of course also sneak in and give them unrequested advice, but you need to limit that to 1-2 things said or written in a non-patronizing, by-the-way style. That works most of the times. Sometimes they then want more. It also works fine to join Novice matches as a spectator and praise correct behavior of one ship. "Ship Xyz, good use of the gatling gun to break their armor!" The rest usually follows the example since they experience the effect of working gun combos. And they feel clever for "stealing" this piece of knowledge from their enemies. Writing "Ship Abc, use your gatling guns!" works only half as well. Like I wrote in my first post which seemed to go largely unnoticed, maybe due to being no community member, it is no easy task. But it gets much easier if the teaching is done in a certain way. And even more when done in a certain environment where they experience immediate positive reinforcement. Aka novice matches. I also learned key words like shooting, repairing, red hit markers in a few languages
Helps a lot with helping e.g. russian players who react sometimes aggressively because they simply do not understand what you want. They know rude words from dota etc, so they often seem more competent in english than they actually are. At least as long as they are swearing.
My point is: More help in the novice matches would be more effective. Also non-misleading game advertisement. That would make people expect the steep learning curve instead of only big explosions.