Why is uBlock Origin injecting things link hidden "linkbucks" URLs?

[Fogest]

Take a look at a style that is being injected:

div[style^="height: 16px; font: bold 12px/16px"],
[href^="http://pagead2.googlesyndication.com/"],
.z0DeRc,
.xz,
.u9,
.u4,
.rh > #ra,
.oM,
.nH.adC > .nH > .nH > .u5 > .azN,
.nH.PS,
.nH.MC,
.aeF > .nH > .nH[role="main"] > div + .mq,
.aeF > .nH > .nH[role="main"] > .nH > .nH > .nH > .mq:last-child,
.aeF > .nH > .nH[role="main"] > .nH > .nH > .AT[style],
.aeF > .nH > .nH[role="main"] > .mq:first-child,
.aeF > .nH > .nH[role="main"] > .afn:first-child + .mq,
.aeF > .nH > .nH[role="main"] > .aKB,
.aeF .nH[role="main"] > .mq:last-child,
.GISRH3UDHB,
.GGQPGYLCMCB,
.GGQPGYLCD5,
.GC3LC41DERB + div[style="position: relative; height: 170px;"],
#tadsc,
#ad,
#\:rr > .nH > div[role="main"] > .mq:last-child,
#\:rr > .nH > .nH[role="main"] > .nH > .nH > .AT[style],
#\:rr > .nH > .nH[role="main"] > .aKB,
#\:rr .nH[role="main"] .mq:first-child,
#center_col > #\5f Emc,
#center_col > #resultStats + #tads,
#center_col > #resultStats + #tads + #res + #tads,
#center_col > #resultStats + div + #res + #tads,
#center_col > #resultStats + div[style="border:1px solid #dedede;margin-bottom:11px;padding:5px 7px 5px 6px"],
#center_col > #taw > #tvcap > .rscontainer,
#center_col > div[style="font-size:14px;margin-right:0;min-height:5px"] > div[style="font-size:14px;margin:0 4px;padding:1px 5px;background:#fff8e7"],
#cnt #center_col > #res > #topstuff > .ts,
#main_col > #center_col div[style="font-size:14px;margin:0 4px;padding:1px 5px;background:#fff7ed"],
#mbEnd[cellspacing="0"][cellpadding="0"],
#mclip_container:last-child,
#mn #center_col > div > h2.spon:first-child,
#mn #center_col > div > h2.spon:first-child + ol:last-child,
#resultspanel > #topads,
#rhs_block > #mbEnd,
#rhs_block > .ts[cellspacing="0"][cellpadding="0"][style="padding:0"],
#rhswrapper > #rhssection[border="0"][bgcolor="#ffffff"],
#ssmiwdiv[jsdisplay],
#tads + div + .c,
#tads.c,
#tadsb.c,
#tadsto.c,
#topstuff > #tads,
.GB3L-QEDGY .GB3L-QEDF- > .GB3L-QEDE-,
.GFYY1SVD2 > .GFYY1SVC2 > .GFYY1SVF5,
.GFYY1SVE2 > .GFYY1SVD2 > .GFYY1SVG5,
.GHOFUQ5BG2 > .GHOFUQ5BF2 > .GHOFUQ5BG5,
.GJJKPX2N1 > .GJJKPX2M1 > .GJJKPX2P4,
.GKJYXHBF2 > .GKJYXHBE2 > .GKJYXHBH5,
.GPMV2XEDA2 > .GPMV2XEDP1 > .GPMV2XEDJBB,
.ch[onclick="ga(this,event)"],
.commercial-unit-desktop-rhs,
.commercial-unit-desktop-top,
.lads[width="100%"][style="background:#FFF8DD"],
.mod > ._jH + .rscontainer,
.mw > #rcnt > #center_col > #taw > #tvcap > .c,
.mw > #rcnt > #center_col > #taw > .c,
.ra[align="left"][width="30%"],
.ra[align="right"][width="30%"],
.ra[width="30%"][align="right"] + table[width="70%"][cellpadding="0"],
.rhsvw[style="background-color:#fff;margin:0 0 14px;padding-bottom:1px;padding-top:1px;"],
.rscontainer > .ellip,
#sqh,
#center_col > #tads,
[href^="http://www.linkbucks.com/referral/"],
[href^="http://www.google.com/aclk?"]
{display:none !important;}

Why is this line here:

[href^="http://www.linkbucks.com/referral/"],

Why are linkbucks URL's being hidden? Seems weird.

I confirmed this is appearing from the uBlock Origin Chrome extension. It is only present when uBlock Origin is enabled.

[gorhill]

These are not links, they are CSS selectors used in a style tag. They come from EasyList: search for them in official EasyList, they are in there.