Of course it will depend on the company etc., but be aware that it could be a negative sign.
PHP has many users just trying to make their own site, without any programming experience. This group is the most important audience for the 12 PSR documents, topicwise (altough no one reads it)
When hiring a professional programmer, hearing that he/she knows PSR and does not know/fulfil one of the topics in any way (but "boast" with others in the resume), is not a good sign.