ICO is not a guarantee that the project will be successful, because most ICO projects are still limited to concepts and do not have clear references,
but projects that don't make ICO or premine are usually serious and good projects.
and I also agree on this, what about your opinion?
That's right, after all some projects also use fake hardcaps where the investment is made by the developer themselves.
In my opinion the making of ICO aims to be more attractive to investors from cryptocurrency users so that the goal range is slightly wider. Then regarding if the project uses ICO and doesn't use ICO, who more seriously? it depends on who the developer is, and I don't think its the main thing to say that project is serious or not.