Oh man! I wished this had been existing by the time I first wrote my introduction to steemit, but this is a great initiative!

I know I still don't know a lot, but I'll be sharing some thoughts coming from a newbie.

How many posts should I resteem per day? 10? 15? 20?

10 per day seems like a good number already. Given the smaller number, @welcoming will be encouraged to really select the best potentials.

This can even be further divided into time frames depending on how many people manages the account. There can be 2-3 posts resteemed every 6 hour interval. This will allow for more spaces between resteems.

Should I also vote on introductions I don't resteem?

As a newbie, every upvote means a lot. This can be inspiring for us to strive better, and produce higher quality posts. The impact depends, but maybe there can be some criteria in place. Example would be a tiered approach.

[1] Excellent and high potential - Resteem and upvote
[2] Medium to high potential (or maximum resteem reached for the time interval) - upvote
[3] Low to Medium potential - a wink?
Or perhaps some encouragement via comment
[4] Spammish - boo! Downvote. Lol. Just kidding. Maybe some comment to further educate the newbie.

Anyway, just sharing some thoughts. Thanks!