Number 1: Badongo has prided itself as Hacker Safe. This means
they most likely own server(s) themselves, in order to have the
maximum control over security. You don't want files to disappear or
appear at will.
Number 2: 100GB for a website like Badongo, you probably have to
clear files every 3 days if millions are going to use it. Not a
good idea, because other hosts make sure it's at least 30
days.
Number 3: I suggest you read more about SEO - Search Engine
Optimization. If you know nothing about SEO and want to be as
successful as Badongo, then dream on. For a start, have a read at
Geeks to Go to find out what's SEO is all
about.
Number 4: Did you even plan? What sort of database are you going to
use? If your website is going to have files uploaded, they have to
be stored somewhere, not anywhere. A suitable language for querying
the database is also needed. HTML can't do everything. Badongo is
not just set up in a night, it takes lots of preparation work,
discussing and designing.
Number 5: Did you test for compatibility issues for the different
browsers available? IE is not the only browser that users use, mind
you. If your website is going to show up funnily to users using
other browsers, they will be pissed off. One way to resolve this
issue is to write a script that detects the type of browsers used.
They are readily available off the web, take one and copy.
Number 6: How are you going to deal with users who disable
scripting on their browsers? How do you detect this?
Think carefully through all these points. If you already have a
website done up, have your scripts written, then find a free web
host to test it out before paying for your real web hosting.
Edit: grammar errors.