I sometimes see writers use a new, mono-sentence paragraph when they want to underline that particular sentence, to make it stronger and to give it more attention, but is that frowned upon? Is it a sign of weak writing? I find it quite effectful and it makes the reader pause right before and after and give it their full attention, which sometimes is just what you want. Is that something we should avoid? I don't know who said it but someone recently was mentioning that as poor writing. Is there any other, alternative (better?) way to obtain the same effect, or is the wanting of that effect frowned upon too?