Are there really adults reading hacker news with skins thin enough to be offended by his post? Perhaps e have a lot of web-monkeys who have a business plan to deep-link?
Antagonises means "in opposition to" or more commonly "to incur the dislike of." Offends means something else entirely. Writing can easily incur people's dislike without offending them personally. For example, on most forums, excessive use of all caps will antagonise people even if they agree with what is written.
