Sure, no problem!

I can't say if it will make any impact on your income, but I noticed that I started to get double the daily views after I signed up.

Some new readers probably started looking at my articles because they see the icon on my profile. I'm sure not everyone is genuine, but that's not for me to worry about.

You can also sign up monthly and cancel later if you don't feel the money is worth spending on Medium.

I also read and interact with a lot of writers, and I think that also helps.

It will be interesting to see if these changes last or if they eventually revert back to normal, because Medium is always changing it's algorithm.

Hopefully, my answer helps you and feel free to ask anything if you have more questions.