They should switch to smaller instances to help distribute the load and avoid situations such as this one when LW is probably attacked because it is the most populous server.
If one of them changes their implementation, compatibility breaks.
And that's why you want a healthy spread of users across both (and even a third one, one day) platforms.
That way they have to keep compatibility with each other to not lose a major share of the userbase
How many different bots are there? Can't you just block them?
There is an option to block all bots in the settings, but some mods use those for regular threads, so that might prevent you from seeing those