Following Cerbrus' suggestion, here is the list of questions that were closed for lack of research. We'd like to ask the mods to reopen these questions given that it was clarified that lack of research is not a reason to close a question.
Note that the list is incomplete, anyone is welcome to edit this meta question or post an answer to nominate other questions for reopening.
FYI How can I view the list of the questions that were the most recently reopened on a given SE site?. On WebApps, the link for users with 10k+ rep to view recently reopened questions is https://webapps.stackexchange.com/tools?tab=Close&daterange=last30days