There needs to be 100 times the people for any change to manifest. No matter how hard you try, you won't be able to convince tens of thousands of people to switch.
I actually followed a guy on reddit who shared his phone number with me. I just searched for him on Lemmy and he's not here. texted him to get over here! lol
Not at all! Just like with price, the difference between zero and one is hugely more consequential than any extra dollar added. Think of it: if you see a community with no posts in the last hour, or day, it does feel a bit deserted. Or a post without comments. By adding a post, or the first comment, you can be the difference for the next guy's impression, and encourage them to do the same, and then the ball gets rolling, and that's how you get momentum.