Multi tabling .10/.25 NL with 5 dollar buy in....

[Wheat]

I play .10/.25 NL at PStars and I have seen several players who show up at tables with only a $5 buy in (max $25). It's pretty obvious how they play after you've seen them a few times. They play tight and push all in with any pocket pair over 10's and Ak and hope someone who hasn't seen their game makes a call. Everything else they fold.
They are doing this at multiple tables, so my questions are...Is this profitable? And do the "Bots" I hear about play this way? Some of these players I see in chat, some never....
Just curious...
Thanks for any replies.
Wheat/"/"/"