YES. Anyway this has to be qualify and Eadeqa could say it is just semantics. A person could be a developer, an user and an investor or all of them. I appreciate the "developer" and "user" part but not the "investor" part. Why? from legal perspective an investor is one who put money in a certain entity and expect others to do the works to produce some returns on the initial investment. So on that definition one additional investor will weaken the network's capacity by one person. One additional user/ helper will strengthen the network's capacity by one person. So it could be said that active investors (= stakeholders) are helpful (and I like) but passive investor is really bad for NEM (I don't care about these).
I think I understand what you mean. Its better to have people commenting here that are more interested in helping the actual project than making a quick buck, that makes sense.
As far as the effect of "investors" is concerned, in my opinion, all types of activity are good for a coin, even the day traders. As with any currency, each transaction strengthens its significance in the universe. Granted its not a cryptocurrency yet and just a stake but the lines are already pretty blurry.
I think a good investor does do work -- the research of figuring out where to invest.
A bad investor just throws money around. This still should be considered a good thing for startups, IPOs, etc.