Yes, you should upvote your own posts. It will help bring more attention to them. And the majority of the here community has agreed that upvoting your own posts is completely fine. Now if you start upvoting all your comments then that is frowned upon.
Those with large stakes took a huge risk buying such a volatile asset, if they want to upvote their own posts I think they deserve to.
I do upvote my own posts.. but you could have seen that just looking at my blog.
I won't be doing any self voting. And I would assume that the people who do self vote, would agree that it is an OK practice.. I don't see the people who I support, doing self voting, if/when I do is when I cease to support them with my vote.