Given that YC probably receives ~50,000 applications annualy, this should be viewed as feeding the ecosystem to get such companies into a fundable state, and therefore allowed.
Standard Terms: You get a fixed N percent post-money SAFE. N is negotiated between investor and seed company, depending on product/team/etc.
Please use this format:
Background:
Have you angel invested before:
Amount you plan to invest:
Areas of interest/expertise:
How you can assist beyond the funding:
Some kind of public profile with contact details: (LinkedIn or X should be fine, you can screen connection requestors)