Would this be a viable replacement for a support / community forum? I'm a DO customer but never have questions so I'm not sure what their support setup looks like.
For using it as a customer support, generally DO encourages you to publish your question on the community instead of going with private chat and support tickets as when the question and answer go public everyone else can benefit from it and most importantly find it in milliseconds when searching on Google.
another reason is that your need for creating docs out of repetitive support queries massively drops as the Q&A is your docs.