why there is need for admin on freshly launched nft-meme community?

Because you cannot make transition into DAO from day 1, because community needs to evolve and become super active, you can only make great DAO and governance after community understands project. That's why we need to be admin for few years, and then create dao and governance around openmeme.io
There will be too many problem to solve, and community will not be ready for it since day 0. Everything takes time.