<commit_before>Problem:
  What happens when a node creation request is accompanied by a configure
  node, but node configuration is not implemented?

  Solution:

  Reply with a not-acceptable stanza error, with a node-not-configurable
  error attached.

<commit_msg>Few more notes<commit_after>- What happens when a node creation request is accompanied by a configure
  node, but node configuration is not implemented?

  Solution:

  Reply with a not-acceptable stanza error, with a node-not-configurable
  error attached.

- Node purging with many items in storage and notification of retraction enabled
could produce a large number of notifications. Suggestion: instead send a
<event><purge/></event>

- Examples 58 and 62 are the same

- What error to return for outcast user requests?
  - What if some admin requested it?

- Why not return forbidden when JIDs do not match on subscription?

{'fraction_non_alphanumeric': 0.046875, 'fraction_numerical': 0.004464285714285714, 'mean_word_length': 4.155172413793103, 'pattern_counts': {'":': 0, '<': 6, '<?xml version=': 0, '>': 6, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4311917', 'n_tokens_mistral': 240, 'n_tokens_neox': 221, 'n_words': 122}