I think I'm going to do a good long post about how free speech is just as valuable as financial freedom and that the two are symbiotic. Therefore memo>Reddit.
Reddit is a different type of media platform than Memo is. The answer to the question might simply be that most people like the forum-style discussions rather than tweet-style ones.
In the future there will likely be hacks of the memo protocol that implement Reddit style forums. Sky's the limit.
