I love this type of comment. Here you were using Jive, a product backed by a company with a $600M valuation (and was valued higher previously). You switch to Discourse because it is basically a better product for your purpose.
I was just using Lithium today, another big honking company. They have a mobile interface that is web-based and is just “OK”. I see a big opportunity for Discourse to get in there with open source and mix up the whole market over time.