There's no doubt that this strategy will be more beneficial than any other. Still, it's hard to keep up those high standards indefinitely. Some days you just don't have the energy to come up with an insightful blog post or offer any helpful tips on Twitter.
Now, if you feel like that you could just have a break. And you should do that from time to time, of course. But you don't want to make a habit of that. It's really important to keep the momentum up if you can. If you can grab a few minutes to be active on social media it's still worth it, even if what you do is pretty perfunctory.
Now I'm not recommending being slopping or spammy. I'm just pointing out the fact that merely logging in and liking stuff is bringing you some algorithmic "cool points" -- not to mention keeping your profile in front of your followers.
Take Linkedin. The groups are a great place to learn and get known by other members. Merely liking some of the content being shared means that your profile photo appears in the side bar for a while. Now if it's a really big group with heaps of members, a few likes in a row might get seen by dozens of people. Before too long hundreds will have seen you this way. Sure enough a certain percentage of those will eventually check out your profile, and a few will even send a connection request.
That's why it's a also good idea to look at the profiles of others in your niche on Linkedin. They'll get a notification that you did. Some will have a look at you. And some of the ones that have will send you a connection request, particularly if they've seen you elsewhere on the site -- in the groups for example!
Then there's Facebook. If you like another page's updates as your page, your handle is visible. And if a user mouses over it, he gets a preview of your page. So, again, lots of liking -- particularly on busy pages -- gets you seen by many people over the long term. Some are sure to like your page. And even if they don't they still know about you, right?
So, every little bit helps, as they say. Try to engage in some social media activity every day, even if it's just minor stuff. It's still worth it in the long run.