Anonymous Option is case-insensitive now + Can be customized

saveinstance.luau

@@ -1309,7 +1309,7 @@ local GLOBAL_ENV = getgenv and getgenv() or _G or shared
 --- @field SafeMode boolean -- Kicks you before Saving, which prevents you from being detected in any game. ___Default:___ false
 --- @field ShutdownWhenDone boolean -- Shuts the game down after saveinstance is finished. ___Default:___ false
 --- @field AntiIdle boolean -- Prevents the 20-minute-Idle Kick. ___Default:___ true
---- @field Anonymous boolean -- * **RISKY:** Cleans the file of any info related to your account like: Name, UserId. This is useful for some games that might store that info in GUIs or other Instances. Might potentially mess up parts of strings that contain characters that match your Name or parts of numbers that match your UserId. ___Default:___ false
+--- Anonymous {boolean|table{UserId = string, Name = string}} -- * **RISKY:** Cleans the file of any info related to your account like: Name, UserId. This is useful for some games that might store that info in GUIs or other Instances. Might potentially mess up parts of strings that contain characters that match your Name or parts of numbers that match your UserId. Can also be a table with UserId & Name keys. ___Default:___ false
 --- @field ShowStatus boolean -- ___Default:___ true
 --- @field Callback boolean -- If set, the serialized data will be sent to the callback function instead of to file. ___Default:___ nil
 --- @field mode string -- Change this to invalid mode like "invalid" if you only want ExtraInstances. "optimized" mode is **NOT** supported with *@Object* option. ___Default:___ `"optimized"`
@@ -1694,6 +1694,10 @@ local function synsaveinstance(CustomOptions, CustomOptions2)
 			end
 		end
 
+		if FilePath then
+			FilePath = sanitizeFileName(FilePath)
+		end
+
 		if IsModel then
 			placename = (
 				FilePath
@@ -2772,9 +2776,47 @@ local function synsaveinstance(CustomOptions, CustomOptions2)
 			if OPTIONS.Anonymous then
 				local LocalPlayer = service.Players.LocalPlayer
 				if LocalPlayer then
+					local function gsubCaseInsensitive(input, search, replacement)
+						local inputLower = string.lower(input)
+
+						search = string.lower(search)
+
+						local lastFinish = 0
+						local subStrings = {}
+						local search_len = #search
+						local input_len = #input
+						while search_len <= input_len - lastFinish do
+							local init = lastFinish + 1
+
+							local start, finish = string.find(inputLower, search, init, true)
+
+							if start == nil then
+								break
+							end
+
+							table.insert(subStrings, string.sub(input, init, start - 1))
+
+							lastFinish = finish
+						end
+
+						if lastFinish == 0 then
+							return input
+						end
+
+						table.insert(subStrings, string.sub(input, lastFinish + 1))
+
+						return table.concat(subStrings, replacement)
+					end
+
+					local Anonymous = type(OPTIONS.Anonymous) == "table" and OPTIONS.Anonymous
+						or { UserId = "1", Name = "Roblox" }
+
 					for _, chunk in chunks do
-						chunk.str =
-							string.gsub(string.gsub(chunk.str, LocalPlayer.UserId, "1"), LocalPlayer.Name, "Roblox")
+						chunk.str = gsubCaseInsensitive(
+							string.gsub(chunk.str, LocalPlayer.UserId, Anonymous.UserId),
+							LocalPlayer.Name,
+							Anonymous.Name
+						)
 					end
 				end
 			end