I remember reading _somewhere_ that entering Twilight Forest on DW20 would be frowned upon. Now I cannot find that bit anywhere.

So.. can I enter Twilight Forest on DW20? What horribilities can I cause by doing so? Does server restart fix memory leaks if TF creates some? What if I'm the only one playing at the time? What if I'm near the server restart time?

nothing good ever comes from messing around in twilight forest tbh. we all agreed to avoid going in there.

The problem with overstressing "don't go there" is it can lead to this sort of thing: https://en.wikipedia.org/wiki/Wikipedia:Don't_stuff_beans_up_your_nose
I think I visited the twilight forest in Monster, got attacked by wierd mobs and couldn't find anything I really wanted to do there but now I read that it is broken I'm itching to make another portal.

I'll take a wild guess that any "another dimension" mod is in danger of conflicting with worldgen mods like Extra Biomes and Biomes of Plenty. Not saying it does, just that it might.

Also I get the impression that too few mod authors test for multiplayer compatibility and often that is the reason we can't have nice things.