@MartinSleziak is that a common point of confusion?

@EricPeterson It's not that easy to get hard data - we cannot be sure how many questions were originally tagged incorrectly and stayed tagged incorrectly for a long time before somebody corrected it.

I'd say that all question listed here are incorrectly tagged - those are the ones which were easy to find: chat.stackexchange.com/transcript/10243/2018/1/19

Indeed, confusion is difficult to quantify.

This query might be - probably very approximate - attempt to get list questions which had this tag in the past: Posts which had given tag in the past.

I have simply removed "Top 10" from the query created by arjafi.

@EricPeterson I will admit that there are not that many of them - however I tried to collect examples of posts that were originally tagged divisors and then corrected to divisors-multiples in another chatroom.

Suppose I have a cofinal map of ∞-categories I→J and let me consider I and J as marked simplicial sets by marking the equivalences of J and all arrows of I that are sent to equivalences. I believe that this should be a marked equivalence. Does anyone have a reference or an easy proof of this?

Wouldn't that mean that J is necessarily a localization of I? I don't think that's true for an arbitrary cofinal map. For example if J has a terminal object, isn't the inclusion of the terminal object cofinal? (The converse is certainly true though - a localization is always cofinal and coinitial)