lol Rated 5 out of 5 stars

Does every little thing the developer says it does with absolute perfection. I don't need it for anything, but that is beside the point.

This review is for a previous version of the add-on (1.15.1-signed.1-signed). 

Thanks for the updating of your review! Yes, TableTools2 does not hide a column permanently, because it's hard to do so consistently given that online tables might change from time to time - whether TT2 tries to hide, say 2nd column of 1st table at a given URL, or it tries to use table id (some don't have it) and column header (header change is rare but not unseen) to do so, it could be subject to caveats.

I could attempt to do it if a more or less fail safe way is found. But before that I'd have to put it on the backburner.