I think the primary focus for this facility has been raw speed. In my understanding the primary usage of positional is to be able to translate sentences more fluently into another human language. This is normally not necessary for log statements, as you are fully in control of both message and arguments. What would your use case be? From: logback-user-bounces@qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of Brett Walker Sent: 8. februar 2013 00:51 To: logback users list Subject: Re: [logback-user] commons-logging -> sl4j -> logback Its may bad. {} is the only syntax allowed It would be a nice addition to have positional, but how warranted is it? Brett From: logback-user-bounces@qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of David Harkness Sent: Friday, 8 February 2013 10:46 AM To: logback users list Subject: Re: [logback-user] commons-logging -> sl4j -> logback On Thu, Feb 7, 2013 at 3:35 PM, Brett Walker <brett.walker@geometryit.com> wrote: This avoids calling the toString() method on the objects until the log message is actually required to be logged. Sorry, Brett, I changed the subject without actually changing the subject since it was semi-related. :) I was asking about "{0}" versus "{}". David