Create Portal on new message without deleted-portals

[whowantsmybigdata]

Hi,
thanks for this great project! Am forced to using discord for work and also I like using it from time to time for support-channels for projects if theres no other option.

Has been working flawlessly for me but I have one concern which is really annoying for me (and maybe for some others as well):

When choosing bridge-modes for my use-cases I can only use create-on-message. Otherwise I miss when a new channel is started, somebody formally unknown creates a conversation with me etc.
Thats nice and well but it also means, the portals which I manually and deliberately deleted (because I don't need them) are recreated as well if sbd. posts sth.

Feature Request: a new bridge-mode which does sth like create-on-message-exept-deleted-portals

Real world example for use-case: A discord guild for discussing a podcast. Every new episode gets a new channel, so I want a new portal to be created. The same when sbd pm's me of course. if-portal-exists doesn't work because of that.
create-on-message annoys me because of some channels which are used frequently but I don't want them to be bridged. Like a channel for discussing (unrelated) game-suggestions, a channel for memes etc. I manually do !discord delete-portal for them but they are recreated every time a new message arrives (which is the desired action in that mode I know). I can just mute them but I still get a growing number of unread chats in my matrix client which triggers my need for a clean interface...

Sorry, I have almost no idea of coding so I don't know if thats asked to much. If so, feel free to ignore.

Thanks for reading!