Last I checked it appeared like Mailinator's POP3 support was completely removed, and API access requires a subscription. It was priced way above what I was willing to pay (I think $150/mo)
Also Mailinator is banned by multiple sites and I feel like that number is increasing (anecdata). Which means it's getting less and less useful for the purpose of "burner" email addresses.
I used Mailinator as the quick solution to access some one time resources on websites that forced me to register. It was the simplicity of the throwaway email that made it attractive to me. But when it's blocked on a website I usually wouldn't want to bother with c more complicated setup. If the effort is justified then I can probably use a regular email address. Other people might have different use cases.
