So far I have not found any way to decrease score in Dev Skill profile (unless someone disconnects his/her UVA/Stackoverflow/Github accounts)! Yet it has been observed that my total score increases and decreases without any activity. Recently I came to notice that number of commits (in github) shown in my Dev Skill profile is different in different time and total score changes accordingly. Is it due to a bug or the API works in some 'peculiar/unexpected' way?
• search through previous topics before posting a new topic
• include link to problem (or at least problem number)
• write code snippets inside [code] [ /code] tags