What is an Arahant?

[Ordinaryperson]

In fact there are no arahant buddhists at all. That would be wrong grasp at self/not self which an arahant has abandoned...surely you're following me

The simple answer is nobody knows.

Since an arahant will not declare whether he is or he is not while the untrained do not have the faculties to determine if he is or he is not.

[confusedlayman]

one who has no ignorance whatssoever is called arahant.

[NuanceOfSuchness]

Some useful information from Dhamma Wiki:

One of the misconceptions about Buddhism, especially early Buddhism / Theravada is that only monks and nuns can become Arahants, fully enlightened.

https://dhammawiki.com/index.php/Lay_arahant

Good article, especially the part where all lay arahants die within 7 days.

Reminds me of the sutta of the Buddha telling a non-returner householder that if he were to go any further he'd have to ordain.

Absolute religious codswallop. You would do good to drop such idiocy from your practice.