Something I do and have seen others do as well is make db rows and identify a row based on Server ID which is awesome if the bot is still in the server but when the bot leaves the server you have to manually add a Delete Rows by Value for every db unless you want to store the data for the server the bot is no longer in. My suggestion is simple, Add a block labelled, “Purge Rows by Values”. This block will have an expandable menu like the Advanced Conditional where you can select as many databases as you want to ignore and when the block executes, you can select up to 5 columns to select as filters with different conditionals (given the columns in each db share a name (ie: server_id, channel_id, user_id)) and it would delete all rows across all databases that are not selected that match the selected values
This is to replace things like the following image which is large and messy
