Congratulations
I think that's quite an achievement and anyone who has been here for a while understands that.
When one looks at a chart of Steem
https://coinmarketcap.com/currencies/steem/
I guess the importance of reputation is somewhat relative, depending on your goals and the value of the platform. When Steem was worth more that eight dollars, it was very important -- now at 59 cents, for me, posting is more about personal satisfaction than anything else.
In any case, I think reaching 70 is something to celebrate!