The author of maaneh l’igros was r. Yom tov Schwartz; he learned iin chachmei lublin, and at one point probably was a talmid chacham, who was broken during the war and had emotional problems. The way he writes has a total lack of kovod hatorah. Rav ovadia yosef likes some of his torah, but criticizes him for not giving proper respect to rav moshe. Needless to say, he never had a following, as rav moshe was rightfully recognized as the manhig hador by virtually everyone.
