I don’t think BOINC/GRC's main motivation should be mining GRC for profit and I also don’t think it would be healthy for the relationship long-term.

"But that is literally the entire purpose of GRC beyond its POS model. GRC exists solely to pay out holders 1.5% annual interest, and to reward BOINC computation."

You are taking this out of context. The first part of this article is a rough analysis of some of the reasons I consider roadblocks when it comes to motivate non-/semi-altruistic people to become GRC miners. The concerns and problems I see are to be seen in context with a certain potential group of future users.

If we use marketing strategies that - additionally to "support science" - focus to much on the mining aspect of GRC from a "profit only" point of view, it is simply short-sighted imho.

Profit-oriented miners sure will contribute - but they also will leave as soon as the next hype coin makes better promises. Just take a look at the 900+ coins currently available. All of them had this one, often transitory phase, thanks to a "profit only" mentality. If we shift our focus towards such strategies (as has been suggested during the past weeks) I don't really think that will be helpful.

Instead - while staying true to what GRC is today - I would recommend marketing strategies that do not convince people because of possible profits, but because of other values that are not related to greed.