What it takes to alienate a typical LWer may differ from what it takes to alienate a typical member of the population at large.
Upvotes and downvotes on LW may be less about (non-)alienation than acceptance and rejection in the "normal" world.
Your behaviour on a non-real-time internet forum dedicated to rationality may be drastically different from your behaviour in "real life".
Social skills are not just about what topics you choose to discuss and what words you use, but also about things like tone of voice, physical appearance, etc., that are completely invisible in the LW context.
It is (for all I know) entirely possible that your social skills are far better than you think they are, or for that matter far worse. (In particular, my making the above observations is not intended as any kind of suggestion that your social skills are in fact bad.) But I don't think having a good LW karma balance is any evidence either way.
This is the public group instrumental rationality diary for January 16-31.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
Immediate past diary: January 1-15
Rationality diaries archive