reduce

Hi, I just connected a newsfeed to the forum and it works. But i have two additional questions: 1. I'd like to reduce the max number of characters in a newsfeed post. People should only see a part of the post like the next example...

Hi, I've a forum with a thousand users and massive daily registrations, recently our team migrate from vbulletin platform, we need a addon to reduce spam registrations through of sms or phone validation, can someone recommend one?