Like a blazing sun, the radiance of your power is wholly unconstrained, and the shadow of your potential looms perilously, a pall over reality that is impossible to ignore. The truth of your essential nature is broadcast without concealment or pretext. Even if it would normally do so, this effect will not cause others to like you more.
You automatically attract the attention of everyone who perceives you, and your rough capabilities are made apparent to them, to whatever degree they can reasonably comprehend. Disguise is impossible, your nature is blindingly obvious, and enemies so informed of your abilities will act accordingly. Snip Progression-types in the bud with overwhelming strength, retreat and attempt to outscale Combat-types, etc. One of a Cursebearer's greatest strengths is the ability to grow in power undetected by the mighty; anonymity is very often the greatest defense. With this Curse, enemies will never overlook or forget the severity of the threat you pose. Even ostensible allies will likely foment contingency plans.
The Plenary Brand overpowers any forms of stealth or misdirection you might attempt. Furthermore, in any situation where it is remotely reasonable to do so, all enemies will focus their efforts on defeating you first.
Unlike most Curses, the strength of this Brand slowly increases with time. Unless efforts are paid towards mitigation, your mere existence will eventually sear ten billion impressions of yourself into the minds of your allies, rendering them comatose, while your enemies become monomaniacally determined to end you.