I haven't ever written or participated in anything political or controversial through any of my google accounts over more than 15 years I've had them. I'm beginning to reach the same conclusion as you on the matter.
The technology isn’t the problem, it’s us. Our primitive instincts just aren’t compatible to deal with such big groups of other people anonymous or not.
Sounds good then! I'd try running it hot after use -trick to see if it makes any difference. You could probably get good 50 years of use out of it if you treat the wooden parts inside with oil such as [1]. The sauna should be extremely dry before treating it and you can do that by running it couple of hours hot without using. The oil needs to be non toxic and non water soluble so high temperatures won't vaporize any toxins from it to your breathing air. It deepens the color of the wood a bit but should look even better.
I would recommend to move it outside as there’s probably not enough ventilation for it to dry between uses. The sweat should vaporize without trace almost within minutes when the stove is hot. It doesn’t need cover outside and can handle rain and snow no problem. Just don’t let it get buried in snow for extended periods of time. The possible electric connections need to be protected from water though.
Just use it weekly and let the stove run hot an hour more after you’re done if there’s any hint of moistness in the wood. It’s better to never turn the heat off immediately after using. I’m a finn and the thing looks very proper with the harvia stove and all