It sounds like you're fooling yourself, doomer. That's just showing the last 8 weeks. The site had higher stats before the coup drama pushed a large amount of users away from both sites, which takes more than a few weeks to recover from unless some happenings or new culture draws people in. The takeaway from this graph would be that despite months of numerous dedicated leftychan saboteurs and /pol/ spammers, the site is still stable, slowly growing and quickly recovering from shocks.
As for 'small', we're one of the largest alternate English imageboards, even after a dip /leftypol/ alone is still larger than sportschan, soyjakparty, lainchan, 7chan, endchan, 9chan.tw and every 8chan board apart from /qresearch/. Bigger than [s4s] and /fa/, and over 3 times bigger than /news/ on 4chan. And as for 'always', you clearly didn't even check.