You seem to have misunderstood me.  Yes you can run a node on Kaspa.  No, your node is NOT validating all blocks and all transactions on the network.  Therefore kaspa is not a trustless network since YOUR node cannot fully validate the network.  Your node only validates some of the blocks and is therefore relying on other nodes to help.

This has the effect of making some nodes more important that others, in particular nodes that are running in massive racks of servers in low latency datacenters, which is the only way to independently validate the entire DAG.