Answer 3 questions that were unanswered for more than 30 days
Awarded to dpb on 31 Dec 2021
Publish your first review
Awarded to dpb on 09 Oct 2019
Accept 5 answers given by other contributors
Awarded to dpb on 10 Jan 2018
Contribute at least one answer each month for 36 consecutive months
Awarded to dpb on 20 Jul 2017
100 of your answers have been accepted
Awarded to dpb on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to dpb on 20 Jul 2017
Solve a problem for the first time
Awarded to dpb on 24 Jul 2013
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