Now the implementation is merged into the reference client, activation discussions slowly restarted on IRC (`##taproot-activation` on freenode).
Here is a wiki page (thanks to David Harding) summing up the "main" different activation methods proposed so far, as well as a rationale and pros / cons for each of them.
Let's see what happens has a truly encouraging name

Anyway, I asked this before and it would be nice to have an answer to see whether I got it right or not.
So let me see if I got this right: after Taproot is activated will it be possible to know if a payment is the opening/closing/mutual closing of LN channel? As far as I understand this, it will be impossible to distinguish if such payment is, let's say, me opening a LN channel. Which is cool.
Right?
Thanks