@IsaacKing I actually disagree, "by 2033" is equivalent "at the beginning of 2033". I'll change it if you think there is a clearer way for the title to represent "Closes on January 1st of 2033", but as it stands I think "by" literally and exactly means this. For a specific example, if I told you I would send you something "By August", it would be at any time before August first. If I sent it to you on August 31st, a reasonable person would not agree that I fulfilled my original agreement.
@IsaacKing I don't disagree, but I genuinely do not know how to make it more clear. While I understand that it would be good for market titles to be clear and explicit, the actual resolution date of the market seems to be the best option to show exactly when a given market will resolve. In this case, it's consistent with the title.
@Sailfish I'm confused by the question. You can make it more clear by wording the title in a non-ambiguous manner. There are any number of minor changes that would accomplish that.
"Will a coal mine be bought and closed by climate activists before 2033?"
"Will a coal mine be bought and closed by climate activists by the end of 2032?"
"Will a coal mine be bought and closed by climate activists before the beginning of 2033?"
"Will a coal mine be bought and closed by climate activists prior to 2033?"
"Will a coal mine be bought and closed by climate activists before the end of 2032?"
"Will a coal mine be bought and closed by climate activists by close?"
"Will a coal mine be bought and closed by climate activists before close?"
Etc. Am I misunderstanding the question?