Maybe the meaning is to invest in a new project, right?
it could be for old or new project as long as it pass to the what OP define.
what is your general opinion on a project offering rewards for simply holding their token with a goal of increasing token holders?
These are projects offering you reward when you hold their tokens, probably rewards like a certain amount you will receive in a regular basis based on your holding.
Because by investing in a new project that means you become a token holder and what I experience several times is just a loss, maybe I chose the wrong project because the return I received was not worth the money I invested. In this case of course I want a return that is better or greater than the amount invested and I think it should indeed be profitable.
You'll become a token holder but most of the time we just hold in the hope that the value will increase so we can sell at the right time, however, these does not include the increase of our holding, it's only the value.