Personally I would rather invest in something with lower inflation (i.e. rewards being burned). I see burnposts (and arguably potato posts) being popular, compared to how rewards have been distributed previously, as positive for Steem as an investment.

I agree it isn't great as an advertisement of content. We probably need a better, perhaps manually curated, landing page, with something like the Trending repurposed as a leaderboard-type page.

Alternately (and really the best possible outcome), posters could step up their game and create more highly-compelling, high value posts which draw more votes than burnpost/potato. We have a few of those but we really need a lot more if we want Steem to succeed on the basis of content.