If suddenly the platform becomes popular, you need to be sure that it will be able to withstand the load of a large number of users.

Yes, this is a very serious factor, the server must be configured correctly.

To be precise, you need to configure the server not only correctly, they must be just as powerful!

I believe that such platforms in the future will be popular only with novice artists ...

I think that you are wrong, the platform has chances to be popular with famous artists. Many people can enjoy the platform features.