Its not true Kenn... think about it this way... the connections you made they will find you again on Steemit ... remember all other media sites are centralized and censored... so this can maybe give you a new advantage... I personally almost only use Steemit... I don't have twitter and I deleted a bunch of contacts on facebook and told them that they could find me on steemit last year..
I mostly use steemit and messenger on facebook.. nothing else... you wil have less contacts but more quality and less crep.