Well, MegaShare.com is in business from 2007 (thats when I jumped in warez world) don't know before it.
At that time, the uploaders uploaded on Rapidshare.com/.de, Megaupload & Megashare. Even I was tempted to upload on MegaShare, but my lame ISP speeds hindered this. I remember downloading from MegaShare at 12kbps speeds (Its not MegaShare's fault, my ISP sucks) when my RS & MU limits were set as I was already downloading files from them. So, MS was an 3rd alternative mirror provided by the uploaders.
Oh and I also remember cracking MegaShare Accounts xD posted in VIPs of many site all around lol
So, what I'm trying to say is that, MegaShare is an old reputed company. They just lacked behind in market advertisement which FileServe/FileSonic/Shareflare/Duckload/Bitshare are good at. But time has changed, and MegaShare has stepped into advertisements too. Hope they get prestigious fame again.
Oh and I haven't got any special achievement as I do not upload much. These are my recent HF stats. They are low, and no one's stats can be as low as mine. Beat that niggas !
[SLIDE]http://imm.io/media/3k/3kdp.png[/SLIDE]