Code is under Copyright - license information missing

[surfmuggle]

First of all i would like to thank you for your snippets, especially the performance.js. Using it as a chrome snippet already helped me to better understand how to use the api.

According to https://choosealicense.com/no-license/ (a site operated by GitHub, Inc.) any repository that does not include a license defaults to exclusive copyright:

When you make a creative work (which includes code), the work is under exclusive copyright by default. Unless you include a license that specifies otherwise, nobody else can use, copy, distribute, or modify your work without being at risk of take-downs, shake-downs, or litigation.

And further down

If you find software that doesn’t have a license, that generally means you have no permission from the creators of the software to use, modify, or share the software.

Although you wrote that everyone can

Feel free to use, modify, or share any of these snippets.

I am uncertain if this is enough or if a missing license is still enough to prohibit everyone from using your code.
I am sorry that this is a kind of a hassle.