No, you don’t have to follow Lensblr to get reblogged, and anyone can Submit.
And no, we don’t feature Members or reblog photos “at random" either.
There’s nothing random about it. Lensblr is not a robot. We’re real people, we have a nice team of editors who review all the photos people submit to us, and who find other interesting photos from hashtags (#lensblr, #photographers on tumblr, #original photographers). These editors make decisions on what we reblog.
We realize everyone won’t like every photo we reblog. We try to be diverse and inclusive. We try to ‘discover’ new tumblrs. And we try to ‘spread the love’ a bit, posting from many people, not just a select few. But we’re not perfect.
Oh and there’s a bunch of other Tumblrs that are posting original works from photographers on Tumblr - we have some links on our Resources page.