“…The importance of attracting, sustaining, and growing the newcomer population in communities is well documented [21,25,26,29,37]. Scholars have explored the factors that affect newcomers' returning behavior, such as • the community's replies to the newcomers' posts [23,42], • the use of socialization tactics in the communities [10], • the motivational factor [8,12,28,33,34,36], and • the norms the newcomers are expected to accept in order to be part of the community [43]. Using a machine learning approach, Burke, Joyce, Kim, Anand, and Kraut [5] analyzed about 41,000 messages from Usenet newsgroups.…”