I have seen people earned few votes of Hive account@gentlebot and Hive account@things-2 for interesting comments. Yes, one need few strategies for earning from comments similar as blogging. However, people with low reputation and SP holding, its better to comment on whale's/orca's post rather than writing a blog unless they think that they are prolific writers. It can be a good beginning. I request Hive account@taskmaster4450 to make another blog on strategies for writing comments from his experience.