Depends on what you're doing.
Worship - good to be addicted to.
Witnessing - good, if God directs ever aspect
Fellow shipping - good, as long as Jesus sneaks in there often
Bible study - good, cuz it's God's word
Nothing but goofyness - well, good in moderation. This is what we get easily addicted to
Why do Christians sometimes have to be the meanest people to talk about the Bible with? UGH!