I dont know how to search and seems like no result is shown of this specific user whose account was deleted today , can anyone help ? Here is the mathstack google cache of the user : https://webcache.googleusercontent.com/search?q=cache:https://math.stackexchange.com/users/900638/waybig?tab=profile
This account was merged into yours for reasons that the Mathematics moderators will be aware of.
The questions and answers will have all been transferred to your account, although some of them are deleted.
The bookmarks may be found (for now) using this SEDE query. The now-deleted account has the user ID 106350.