Right now the user count Lemmys is comparatively tiny when held up against reddit - but the user count isn’t the thing that makes a social media site, it’s the engagement
So even if you’re used to lurking, try to get a little more active! Post memes, vote on posts, talk in the comments, whatever!
If people come here and see activity, content, and discussions, they’re more likely to stay and contribute their own - if they come and see a ghost town, they’ll just go back to reddit
To be fair, I’m not sure if it helps to generate “fake” activity. IMHO the migration to lemmy will only work if the content will at least have a minimum amount of quality. Just posting random memes is probably not a good way to start.
Unless of course if the content you want to share is random memes and want others to do the same in your community. Please be nice to your instance owner’s costs and link not upload the images.