One particular question, 17 of Tammuz occurrences, seems different from the others (besides that it's not a Teves question nor posted by Gershon Gold). On the one hand, the OP never specified what sorts of events he's looking for in an answer, and the answers list the signing of the Declaration of Independence (not even Jewish) and the yahrtzeit of Rav Yaakov Weinberg zt"l (with all due reverence to the Rav, still not on-topic). On the other hand, the OP himself posted an answer quoting the Mishnah in Ta'anis, which is certainly on-topic.
Should this question be closed like the rest in the series? Should it be edited, considering the particular date in question, at the risk of invalidating (and potentially intentionally deleting) some answers (that are off-topic anyway)?