I can think of lots of people who engage in excessive activities but I wouldn't class them as addicts as they don't appear to experience any detrimental effects from engaging in the behaviour.

我能想起好多从事大量活动的人，但是我并没有将他们划归为上瘾的人，因为他们从事的那种行为并没有给他们带来任何的副作用。