Markets are conversations. Conversations are two-way. Since you are what you do and say online and since you will be judge on your reputation and follow-through, it is important.
Being open and authentic is step one of who you are, step two is being available to respond to questions, comments, and criticism.
No matter how sweet, open, earnest, and bespoke your message, if you fire-and-forget while messaging online and don’t follow-up and actually engage in the conversation and follow-up, then you might have an online reputation, but it won’t be good.
Becoming an opinion leader online requires becoming part of a community – being invested and engaged.