It can't really be fully predicted how intense the migration, but we are expecting quite a bit.. if previous platforms (especially twitter) are any trend to look towards, expect traffic to intensify a bit. Probably even more than it already has.
For those coming from reddit
Please bear with us as well, as well as the rest of the lemmyverse. If you're new to lemmy and the fediverse as platform, you may be confused as how to best find communities right now. lemmyverse.net/communities is a good start, make sure to tick the NSFW community display option. Welcome to the community, and bear with us due to the limitations lemmy currently has as a platform. Things are improving, but for the time being our current content policy is quite strict. It is temporary, and will be elaborated more so in the future as lemmys mod tools improve. There will be a link added to the sidebar that provides info as to why this is.
Be mindful of making sure your NSFW posts are properly tagged as well.
Yeah, this instance in particular I think won't get a big rush until Reddit nukes NSFW content entirely. I could see them doing that in the near future.