I'm using a 3 year old T510. Same Config as yours. Lenovo build quality is simply amazing. I'm really really rough with it and its still in one piece.
Edit: actually it's a a little confusing as from your submissions it looks like you are shadow band but if that was the case I would not be able to reply to you here.
I cannot quite figure out what the issue is. I am not shadow banned, but it looks like my submissions got caught in the HN Spam filter. What's really surprising is that the submission was a simple Ask HN with no links pointing to an external site. The topic does not seem irrelevant either. Maybe I should post this as an Ask HN.