What’s the motivation to push heroes to Dota+ 30 lvl i.e. Grandmaster.

Hi Everyone,

I wanted some feedback from you guys. I just played 2 games and had a Shaman and an Invoker Grandmaster in my team?(different games) The Shaman was pos 5 who started lane with Brown Boots and 2 Clarities, rushed Arcane(no regen would run to base if low) and then farmed side lanes for Aether and Blink.

Invoker who went even in midlane with OD, has a 11 min Midas and was level 16 at min 31 with BOT and BKB. This guy was Grandmaster as well. Had only 5 deaths in 31 minutes.

I don't understand what's the point of playing a hero for over 500 games and still don't know what to do. Just wanted to know is it just that you guys want to have that lvl 30 tag on your hero or people actually learn and achieve that badge.

Whenever I see a lvl 25, 30 hero I expect these guys know what they are doing but all they know is mute everyone in team when they are lost in the game. Also, the games are like 3.4k Avg so these guys are not like that low skill to not know the basics.