I, DeKleineKobini, can always be contacted in-game through my profile or the forum post. There is also my Discord server that is open for contact. If needed you can also email me at kobedpeuter@gmail.com.
Playground is a site where I provide access to tools that I think are interesting. Hence the name, this site is kind of meant as my playground, where you can also enjoy yourselves. The amount of available tools will grow over time, also based on your suggestions.
Development and maintaining this site is done by DeKleineKobini. Any questions can be asked, check the contact section for possible ways.
Running a site sadly isn't free. I don't mind to, and I will, take on the costs of running and maintaining servers myself, but I won't refuse donations. As someone who hates ads with a passion, especially in combination of the restricting they can come with, I will not be showing ads as long as possible.
Donations should only ever be done if you can afford it, and it does not provide you any benefits. If you are sure that you want to donate, you can do so through PayPal.