It depends on its market cap, if I think it can rise more, I hold it. ''I aim to hodl forever'' what a option? So you are waiting those coins to die. It is all about potential.
This would really be on case to case basis depending on the coin you would invest.Hodling is not always being suggested same as you said there are coins which do have really a big supply which we can already presumed that holding it for long term would be somehow pointless because pumping it would really be a rare case.