It appears that a length limit was imposed on profiles recently. When this happened any text that exceeded the allowed length was simply truncated. As a result, profiles end abruptly in the middle of sentences. The input form for editing profiles was not updated to stop at the new length. So a user can input as much text as they like, but anything after the maximum length is cut off when saving. In addition to asking for this to be fixed I'd also like to address the user trust issue here. You can't simply cut off someone's profile and not inform them or give them any chance to revise it first. This violates your users' trust and has the effect of making them look like they're bad at writing profiles due to no fault of their own.