I guess it is only worth anything on stackoverflow and it might be of value on a future job hunt if and only if you take care to present it as "true work outsid

I guess it is only worth anything on stackoverflow and it might be of value on a future job hunt if and only if you take care to present it as "true work outside of your work time". Otherwise you risk, as gaius says, being considered a procrastinator and someone who spends too much work time on his hobbies. Sorry. It is something to be proud of but to be handled with care also.