Unfortunately, the simplifying approximations often employed in the treatment of such more complex reactions, as well as the formalism typically used that contains implicit concentration dependencies, have led to important inconsistencies and inaccurate or even erroneous conclusions on the description of the electrochemical kinetics of multi-electron reactions. This concerns the determination and interpretation of the Tafel slope and the exchange current density, the anticipation and interpretation of reaction orders, as well as the correction for mass transport contributions and under-appreciation of its significance in deducing kinetic parameters. We can trace some of the prevailing misconceptions to derivations relying on simplifying approximations present in early electrochemical literature, while others have accumulated and propagated within more recent articles published in high-ranking scientific journals. These largely unnoticed misconceptions have had far-reaching consequences with respect to the experimental design and interpretation of results for various electrochemical reactions.