@cyberator - this is a long one too, but that's just the way I explain things. So -
If some tags are showing up, then no, it's not the privacy settings.
No need to go away, however you should be looking in other places than the forum first or at the very least look in them as well as coming to the forum for your info and, for that, you need time which I really don't think you're allowing yourself.
So, let me try and get you started as I think you need this basic info.
When you don't know how to do something on WordPress, your first stop should be the Support pages:
When you're there, you have two options. You can either look at the categories on offer there and try to find your info that way, or you can enter a word or some words in the Support internal Search field and find it from the lists that will then be presented to you. Then take your time and read carefully through the info. If you can't take it in first time round, go back to it again. Or go to Google and do a search on one or two of the terms to see if anyone else has written about it. (Many of us find Google more helpful than the Forum search).
What you probably need to know is that the forum here is mostly for technical help rather than for teaching people how to use the site. Some of us don't mind - on occasion - helping people learn to use the site, but this isn't the 'teaching centre' per se.
Now you know where to go for info about how to blog here: the support pages.
So, given that you can find info about stuff on the Support pages, here's a clue:
If you go to the page for Global Tags, and look for their info on missing posts, which is here:
you'll find that the Global Tags page displays the most popular tags. But if something isn't included there, you'll be able to find it this way (and I'm going to give you a link using one of your own tags):
Put that URL in your browser's address bar SOON and you'll see your tags. Try the same formula with your other tags, and you'll see them too.
If you don't see them, it'll probably be because they've been replaced by other people's tags which are now newer than yours.
And as for appearing on the Global Tags Page, you're obviously not using particularly popular tags, if they aren't appearing there. That's no fault of yours, just the way fashions for topics go amongst blog readers. And it won't be any different on another bloghost.
The Support pages have the info you need about the basic functioning of this site. You can find this info yourself rather than having us do it for you. Come here to the forum when you don't understand something and think we can explain it to you better than the Support pages do or if you think something is going wrong (lots goes wrong on WordPress just as it does on any other internet site), but do try to learn more about the site yourself first.
You're very welcome to ask questions here in the forum, but you do need to have more patience with both us and yourself, and you do need to learn more by yourself.
NB: Please excuse me if there any typos or repetition in this, I'm not terribly well at the moment.