Because it really was not all that hard for me to do. And, when considering the feature benefits in the nightlies, even the V4 nightlies, it still seems to me a “no-brainer” to step directly into V5 at this time.
V4 and V5 handle the libraries differently. It does not make sense for me to recommend that a beginner learn V4, only to have to relearn a totally new system in a short period of time in the future.
Standard nightly disclaimers apply. However, I’d bet that those on this forum would be prompt to help find a solution to any issue encountered when respectfully asking for technical help (the 100+ replies already demonstrate this). Another benefit is that other new users will be able to search the forum for a solution in the situation where the documentation may be a bit lacking, which is perfectly normal for open-source software.