v3.22.2

Fixed

• hashtag-stuff counted every #word, so ordinary technical prose flagged as a stuffed tag block (#90). A paragraph citing six issue numbers, a palette listing six hex colours, or a C snippet with six #include lines all scored as hashtag stuffing. Found when this repo's own README linked issue #88 and the detector flagged the README. The bug report has the same problem: the prose of #90 cannot describe the rule without triggering it.
• Two subtractive changes, so the rule cannot begin firing on anything it did not already fire on. maskCode() blanks fenced blocks and inline code spans before counting — fenceRanges() existed but was wired only to title-case-header, so a tag quoted in backticks counted as a tag used. isSocialTag() subtracts all-digit forms (#88), 6- and 8-character hex colours that contain a digit (#1a2b3c, #1a2b3cff), and C preprocessor directives (#include). owner/repo#88, URL fragments, shebangs, and Markdown headings already passed on the rule's own anchor and are untouched.
• Recall changes, both deliberate and both worth stating. An unclosed fence masks everything after it, so a trailing tag block below one no longer flags; this follows fenceRanges' documented run-to-end rule and matches how renderers behave. A stray backtick pairs with a later span's opener and masks the prose between them, which is CommonMark-correct code-span pairing.
• Two false negatives were introduced during development and removed before merge, both found by adversarial review. Carving out 3- and 4-digit hex deleted #b2b, #e2e, #dad, #cafe and #face; the carve-out now needs 6 or 8 characters and a digit, so #decade and #facade survive too. Masking indented blocks silenced any tag block sitting four spaces under a list marker, where four spaces is a paragraph continuation rather than a code block; that pass was dropped entirely rather than patched. Both were the same mistake: buying a false positive with a false negative on the one shape the rule exists to catch.
• Ambiguous word tags stay counted on purpose: #main as a CSS id and #general as a channel are the same token as a tag, and separating them needs a guess about intent that costs more precision than it buys.
• Nine fixtures, five that must not fire and four that must. Every carve-out and both masking passes are mutation-tested: disabling any one of them fails the suite, as does widening the hex pattern or dropping its 8-character or digit requirement. No new detector type, so the catalog count stays 61 and CATEGORIES.md is unchanged.