not once does the writer explain what she means by "SRE" -- yet uses it repeatedly. Spend a few words early on to define your term and then go ahead and abbreviate away. That's just writing 101.
It really helps when HN posters either clarify things a bit in the title, or if that's not practical, make a comment when you post the link.
[2] I know, ABBR is the new hotness, but I'm still using HTML 4 for my blog and old habits die hard.
1. it's a hinderence for people who are studying to become the intended audience.
2. sometimes I'm reading two literatures that use the same acronym, so it's momentarily stupifying.