Earlier versions of Invision Community allowed a simple way to promote content to Facebook and Twitter. We have since removed Facebook due to their increasingly stringent policies and reviews on posting programatically.
Recently, Twitter have announced new paid API tiers starting from $100/month. While a limited free tier remains, we feel that it is likely that the free tier will be further reduced or removed making this tool redundant.
We have chosen to remove it, but will retain the popular "Our Picks" pages and widgets. For social promotion, we recommend using Zapier or other API methods.
We hope that there will be good solutions for social promotions in the future and will certainly keep our eyes open to re-introduce these features.