I was on the other side of the table: as an interviewer (plus a resume screener). I've seen this before with my own eyes but then my experience is just an anecdote: back in the 1998-2005 era, people keep piling on multiple technologies: C, C++, Java, Perl, XML, XPath, XQuery, XForms, SOAP, etc but whenever I looked into their resume, it becomes quite clear that they "learn" these technologies while working on something that:

1) I've never heard of,

2) or the needs to incorporate enterprise solution from back in the days (e.g.: form builder, complex enterprise frameworks, etc) doing some enterprise system

In most cases, again this is my anecdote, none of these developers pass the interview.

NodeJS was hot in the last 2 years (thought it has cool down a bit lately) but to me, NodeJS seems to have the risk of becoming one of those X[technology] revolution in which could lead to a negative signal if one has it in one's resume (plus it's a chance for me to grill candidate how good he/she is when it comes to JavaScript idioms, patterns, best-practices, automation-testing because at the moment, I know the majority of developers who put JavaScript on their resume don't actually practice "good hygiene" when it comes to JavaScript while I know for sure the number of Java developers whom I've interviewed before at least could demonstrate a better/solid software engineering skill).