> I realized that the node id is not the same as the lnd node id

For the node_id to be the same, the same keys would have to be used. A lightning node is defined by it's private keys and state (commitment transactions). What @TonyGiorgio meant when he said you can't transfer nodes across implementations is that you can't transfer keys and state easily from lnd to core lightning, thus the node_id will not be the same. 

> I deleted core lightning and downloaded it again and now it shows the name of another different user

If you uninstalled and re-installed core lightning, then you generated a new set of keys. It's not showing another user's information, it's showing you newly generated information

netstatic

lightning

core lightning node id problem

Articfoxb123

I am not trying to transfer nodes from one implementation to another, I am trying to solve why when installing core lightning the name of another user that is not my node appears every time I install core lightning...