is it healthy for yeshiva bochurim to learn from a artscroll?
I was under the impression that he was referring to someone currently in yeshiva. Meaning, it�s not anything like 70% 30%. It�s 100% of the bochrim who are following the rules are not using Artscroll. The question is about a subset of the population, not the whole population. Obviously, Artscroll is a positive when you consider the whole population. We aren�t ignoring the lesser-educated masses out of meanness here, we�re ignoring them because they were not the subject of the question.
If you are going to phrase it that way, then the answer is I DONT KNOW and nobody knows either, Every Bocher is different. Until you know who the bocher is, you cannot answer the question. If he doesnt need it, then its a negative, but if he cannot learn without it because of his language skills then its absolutly nessasary