I mean that was a lot of places on the internet, and while Trump had lolcow traits back then he was able to mask it well to many especially with these factors that made him look cooler than he is:
1. Trump had a more populist campaign where he said things that appealed to normies and even some left wing people. Trump also genuinely came across as a very funny guy back then with good comedic timing and more politically savvy.
2. Every other politician at the time didn't know how to handle him and came across as clowns or out of touch (See the 2016 Republican Primaries where everyone came across as a wimp and Hillary who wagged her finger telling people not to vote Trump for saying curse words)
3. Like point 2, but more specifically Hillary Clinton ran a god awful campaign that was incredibly narcissistic, cringeworthy, and out of touch where she felt entitled to the Presidency and kept reminding people she had a vagina while not even bothering to campaign in some states. That and she had decades of scandal to her name.
4. 2015-2016 culturally was the peak of cringe for SJW and politically correct ideology where more people got offended over every little thing.
Of course you may disagree, but Trump managed to really mask the stench of being a lolcow really well back then, I think becoming President made him more of a cow because he was out of his depth.