Stellar Lumens has the Anti-Spam role to the smallest level
Actually this function is also owned by Ethereum (ETH) to prevent the occurrence of DdoS attacks or simply thousands and even millions of Requests at a time, which usually causes delays in transaction processing. Each transaction will be charged a small fee of 0.00001, so that any malicious intention to flood the network will not be possible. Even if anyone intends to do so, automatically the funds owned by the attacker will be drained before the attack can damage the network.
· Minimum balance of 20 Stellar Lumens.
This feature is only applied in Lumens, where customers must leave at least 20 Lumens on their wallet. Terms like this will ensure that the account held is the original account, so that parties who are just "fad" cannot participate in the network.