In the address wiki page it says that "a Bitcoin address is a single-use token". Do I have to understand one address is (or should be) used only once?
More over, the Address reuse page seems to confirm that. But when reading some information here, this address 1F1tAaz5x1HUXrCNLbtMDqcw6o5GNn4xqX has 641 transactions. Could you please tell the points I misunderstand.