I understand your point of view, too, Eugene, but I cannot quite agree with you. Kevin is groping his own way of learning a language. If he composes his sentences by himself (I mean if he doesn’t google-translate them, lol), then he is definitely advancing. If he tries to memorize words and expressions he uses, if he is attentive to the grammar rules he comes across while composing his sentences, then his way is quite acceptable at this particular stage of his learning.
Do you think he cannot afford to buy a textbook or download one? I’m sure he can. But he wants to start with the most essential things for him. He wants to start with what he would like to say to his Russian interlocutor first of all. And besides he wants to have fun while learning instead of reading dull texts. Emotions are important in any work.
Next. I hope you agree that one of the main things about learning a language is being persistent. I’d say learning a language is all about being motivated and persistent. Two persons may graduate from a university and have absolutely different levels of knowledge. You could claim that the traditional way of learning is the best, only if any person who has employed it becomes fluent in a year or two. But it does not often happen. Personally you must have learned English in school for 10 years, then at a college and besides that by yourself. Can you say that your English is perfect? Mind also that English sounds in all kinds of the media in Russia, it’s in songs, movies, it’s popular. Here it’s kind of prestige to know English. You get admired by everyone if your English is far above the average level. Not so with Kevin, and not so with Russian in the US. Russian is far less popular there. Americans are self-sufficient in this regard, for they are worldwide language native speakers, lol. Then you also can look at me. I’ve been learning English with proper textbooks for years. Still I am very much similar to a dog that understands almost everything but can say nothing, lol.
Do you know how Heinrich Schliemann, the legendary founder of Troy, learned a language? He employed his own system that he used his entire life. Schliemann claimed that it took him six weeks to learn a language and wrote his diary in the language of whatever country he happened to be in. He just took a book in his native language and its translation into the language he was learning. He read them simultaneously and just compared. Finally he knew 13 foreign languages!
Kevin may find it necessary to quit this practice any moment, he may start employing something different or something else. It’s up to him to feel at any particular stage of his learning that he has grown out of this practice and he needs to take a further step. But I’m sure that what he is doing now does do him good.