To the best of our knowledge, predicting helpful posts in generic open-ended discussion forums has not been studied before.
there is significant amounts of related work on similar directions; where researchers evaluate the quality (which may not correlate with perceived helpfulness by the community users) of posts in specific domains such as health (Oh et al., 2012;Oh and Worrall, 2013;Beloborodov et al., 2014) and online education (Chandrasekaran et al., 2015;Chandrasekaran and Kan, 2019;Jenders et al., 2016).