Dota 2 heroes are pretty difficult to play at first so some people prefer to spam some heroes to get better mechanical skills and knowledge about the game. When I was a noob, I spammed Morphling despite him being a very difficult hero because I liked his skillset and how he could carry 1vs5 in 6.88. The 7.00 patch nerfed him pretty significantly with the removal of stats and now he's not as good as before but I still think he's pretty decent right now. I have over 200 games on Morph now but have stopped spamming him.
Have you fallen with a hero so much that you spammed him or her?
#2
overcast
APPRENTICE
Never spammed any hero as of yet. I think some heroes are going to take time to get used to in attack. Also I have seen people using some heroes better than me. And that in itself helps a lot to learn from the game of others. It all comes down to how you're handling the spam and other hero management. I personally think that spamming is not worth for any hero.