I'm in the other camp. I always italicise with quotes ( as distinct from internal thought, which I italicise without quotes).
I think the italics are an important although subtle indicator or reminder that there is no face-to -face interaction — no expressions or body language, which makes it different to normal dialogue.
But in the end, it's a stylistic choice. Do what you want, nothing is "wrong". I'll say it's a common convention to italicise electronic dialogue (phone, radio, intercom ... even telepathy in sci-fi.)

Is that a 3rd person thing?

I already had my stuff on PayHip and Gumroads. Now, I'm adding Lemon Squeezy to the list. I only have a few things listed there so far, but I'm working on it!

I am going to blatantly promote the blog on my new store (don't look at my books/promotion is not for me). LOL  That is all.

https://payhip.com/LavenderCottageBookShop/blog/lavender-cottage-blog

ETA:  The blog feature is one reason I went back to Payhip.  I can duplicate the website blog so more readers see it.

If I hadn't already invested a lot of time in other approaches, a mere glance at your site would persuade me to use the same approach.

It is one of the most beautiful online stores I've seen. And there's a clear, well-branded vibe there. It makes your books all the more appealing.

I am going to blatantly promote the blog on my new store (don't look at my books/promotion is not for me). LOL  That is all.

https://payhip.com/LavenderCottageBookShop/blog/lavender-cottage-blog

ETA:  The blog feature is one reason I went back to Payhip.  I can duplicate the website blog so more readers see it.

I believe Shopify tracks state sales tax thresholds (never looked into it that carefully) but there is a lot of information out there if anyone wants to look more carefully into what's available and where.

Tracking isn't necessarily the issue.  You can do that with an accounting program or even a spreadsheet.  The problem is filing with all forty-something states and keeping track of how often you need to file and remit.  In my state, you file based on sales volume.  Most businesses will have to file monthly but, if you only have a small number of sales (I don't remember the threshold off-hand), then you only need to file twice a year.  In either event, you file whether you have sales or not.  I don't know the requirements of the other states.

So, even if tracking the sales isn't terribly difficult, if you had to file monthly with forty-something states, even if you don't have sales in certain states in that period, well, that's just a major loss of time.  Even twice a year would be over 80 reports to do each year.

Several states are changing from the 200 sales threshold to the dollar amount.  If all of them do this, it would make things much easier.

I wonder what Kansas will do.  Last I saw, you have to register, file, collect and remit sales tax if you reach a $1 threshold of sales in the state.  My thinking at present is that I'll just leave Kansas off the list of states I will sell to.  It's one thing to have to go through all the filing and collecting and stuff if you have thousands of dollars of sales in a state, but $1?  Um, no.  Easier to be like, you know, if you're in Kansas and want to buy my stuff, find a friend in Oklahoma or Nebraska or another neighboring state and have them buy it for you.

I don't want to lose customers or exclude people, but I'm not becoming a tax collector for $1 in sales.