Is there a limit on the number of multiple re-entry permits for Thailand?

The user recently obtained a one-year extension to stay in Thailand under a retirement visa and purchased a multiple re-entry permit. They inquired about the limitation on the number of re-entries allowed with a multiple re-entry permit, expressing uncertainty since it is said to be unlimited. The conversation also touched on visa application processes, including online applications for e-visas and the requirements for various visa types, such as tourist visas and extensions.