FWIW, and I think I've mentioned this before, there is consensus emerging in the field of social psych that depth/quality of interaction is better than quantity of interaction. So, face-to-face > video/phone/voice chat > email/texting > browsing social media feeds/liking/reblogging/etc.

In fact, there's good evidence that the more time you spend on particular social media platforms that emphasize both passive consumption and an artificial presentation of self such as Facebook (and probably Tumblr as well, tho I've never seen anything specifically on it), the more unhappy you'll become...and that this is true regardless of your state of mind prior to use.

Anyway, it's sort of like how everybody knows these days that cigarettes are bad for you. That knowledge may or may not stop you from actually lighting up, but it should certainly factor in your decision. :-)