Users report that the HTML diff view in the forum is inaccurate, often highlighting unrelated text changes due to algorithmic misinterpretation. calmh first shared a screenshot showing a diff that incorrectly linked additions in a new paragraph to existing bullet points, possibly due to multiple edits being merged. zogstrip and codinghorror suggest switching to Markdown view, which is more reliable. calmh confirmed only the last paragraph was added and shared a Markdown diff screenshot showing correct highlighting. Later, mrmowji revived the issue, noting the problem persists — even simple edits like adding or deleting an empty line trigger unnecessary highlighting of multiple lines, indicating the HTML diff remains flawed beyond just this case.
See the screenshot for a diff on an edit I made. Actually multiple edits, which might be a contributing factor, but combined into one historically (I guess due to being within a five minute window or such).
The meat of the edit is the adding of the last paragraph. But the diff algorithm seems to have latched on to some words in that paragraph that are in the first point in the bulleted list and then kept drawing the wrong conclusions.
Como você pode ver, acabei de adicionar uma nova linha após a imagem (daí esse ins, eu acho). Mas três linhas são destacadas, o que parece desnecessário. O mesmo acontece se eu excluir uma linha vazia; receberei um del.