Transaction fees: bug or feature?

@smoul Non-members should not be able to send transactions.

An Aside

If a member amasses UD and then loses his membership, then he is effectively removing some of the currency from circulation and thus increases the value* of UD.

(By “value” I mean the value given by the community, not an assigned value; it freely fluctuates alongside the changing views of the community.)

My reply

If you need not be a member of the community to spend UD, then why have certifications? Certifications (as I understand) were added to create a fair system (1 identity per person, so that that person gets the same amount of UD allotted him as any other person).

If one need not be a member to spend UD, then he can exploit the system and gain “anonymity” instead of linking himself with his Identity and PubKey:

  1. Amass a quantity (Q) of UD in a wallet that he owns.
  2. Create a set (I) of unproven identities without certifications.
  3. Send an arbitrary amount of UD from Q to the identities in I.
  4. Send UD randomly between the identities in I to obfuscate the originator (especially by sending UD at random intervals).
  5. Spend the mixed UD held by the identities in I.

Am I mistaken?