The company discontinuing a software product may want people to buy another if its products instead, which they might not buy if they could get a community supp

The company discontinuing a software product may want people to buy another if its products instead, which they might not buy if they could get a community supported version of the killed product for free instead. E.g. Adobe ended up owning both GoLive and Dreamweaver, and killed the former. If Adobe had open sourced GoLive, that might have reduced subsequent Dreamweaver sales.