this is not a question just for you, but i wonder what others think about this too.

i get that the number of years of using a language is a useful indicator, but the age? is my experience from 10 years ago no longer valid? also, proficiency in one language does translate to overall proficiency in any language. not 100% obviously, but the more programming experience i have the better i can learn new languages, and the faster i can get productive. same goes for any other tools. old experience is not forgotten. so even the years i have worked with any particular tool is missleading. and if i only list my work from the last 10 years then i'd look like all i have ever done is javascript, and that would limit my options very much.

i have been able to work on python and php projects as a mid-level developer without any formal prior experience in those languages. in the python case the employer knew about it and was still comfortable to hire me. in the php case i was able to cite some php work (which i had done) and i was still producing better results than any of the junior developers on my team. only the team lead was clearly more experienced then me.

how am i going to make that point if i don't list all of the projects i have worked on, no matter how long ago?