Add Marios Ioannou to RIG

[casparschwa]

Marios Ioannou joined the Robust Incentives Group (EF) full-time in July 2025.

His main contributions have been co-authoring EIP-8070: sparse blobpool and SOON. Work contributing to the former and more:

• This is a note about using the logic of SOON for pull-based broadcasting that will likely become more relevant in the near future: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/ryHm9mfgWx
• This documents gives an overview on the blobpool scaling attempts currently under way: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/rJAq8r81bg
• These are two drafts on async blobs: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/H1RRzD5EWl https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/r18ORER6xx/edit
• This note proposes unconditional payments for blobpool: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/S1jjaLi_lx
• This document outlines concerns and suggestions regarding DoS resistance of the original sparse blobpool mechanism: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/rk3TSjgJbe
• This note incorporates tickets to the sparse blobpool mechanism: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/HJKi-RXpge
• This note with Julian explores censorship resistance of the ticket mechanism: https://www.notion.so/efdn/Censorship-Resistance-of-Blob-Tickets-2d9d98955541807b9efbfb405b82320d
• This is a note regarding DAS with individual-level sampling guarantees: https://hackmd.io/@gMH0wL_0Sr69C7I7inO8MQ/rJSebrhYlx