Evidence of Taproot opposition in 2021:

1. Luke Dashjr called Speedy Trial "an attack on Bitcoin" (Apr 2021)
   https://news.bitcoin.com/bitcoin-development-controversy-speedy-trial-taproot-activation/
2. Luke Dashjr — PSA: Taproot loss of quantum protections (Mar 2021)
   https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-March/018642.html
3. Mark Friedenbach — "Why I'm against Taproot" (Mar 2021)
   https://freicoin.substack.com/p/why-im-against-taproot
4. Nikita Zhavoronkov (Blockchair) — Taproot privacy threat (Jan 2021)
   https://forklog.com/en/taproot-a-privacy-threat-why-the-forthcoming-bitcoin-upgrade-is-drawing-criticism/
5. bitcointalk: "Taproot is useless, minor improvement" (Nov 2021)
   https://bitcointalk.org/index.php?topic=5371662.msg58452920
6. LOT=true vs LOT=false developer split — 19 devs opposed the Speedy Trial approach (Feb 2021)
   https://en.bitcoin.it/wiki/Taproot_activation_proposal_202102