FTR, I did not see any insult in the remarks made by Aries. I am also overweight, and I would definitely be sensitized to mean-spirited remarks. Aries said some well-expressed NON-mussar, but rather sound advice, IMO. I heard no judgmentalism in her post.
However, I do think that sometimes some of us do tend to not respond to the actual question posted, but to offer “insights” that are as a result of our reading between the lines. For example, the poster asks for advice about what type of movies are appropriate for the children to view, and several people respond “Since when is it muttar to see movies? Did you ask a shailah?” That may be the responder’s hashkafa, but that was not the question the other poster asked, and it is not helpful.
Sometimes we are correct, but soemtimes after reading someone’s response to a post, I feel like, “Wow, the original poster never meant THAT, I’m sure!” So I think it behooves us to really think before we hit the “send post,” to make sure we are not misreading the OP, and to also make sure that what we are replying is what we intended to convey.