Is publishing poetic verses that address the topics of love, separation, and reproach on social media platforms unlawful (haram), and will a person be held accountable for them on the Day of Judgment?

There is no harm in writing such verses on Twitter and the like for a noble purpose and a sublime goal, provided that they do not include what Allah has forbidden, such as calling to fornication, indecencies, and lewdness, or making insinuations about a specific woman.