I don't see why you're so surprised, OP. In the beginning there was only bitcoin. But now we have over 300 different cryptocurrencies. Bitcoin is great, but it's obvious that the amount of posts created about bitcoin simply can't outnumber the plethora of posts for each and every one of the new and old alts out there.
It's just numbers.
That said, if people want more BTC threads and posts, just post more. And yeah, if the altcoin posts are annoying you -- it's time to ignore those boards.
I agree to this. This is a strong indication of the fact that how the interests of people are changing with time and alt coins are getting more popular. I am also concerned about those fraud projects popping up every day as some new investors might get affected by them.
But there are coins that are giving better returns in comparison to bitcoins. Most of the people are concerned about returns only and they are not loyal to any coin, even if it is the bitcoin with which all this crypto started.
It's not that alts are more popular.. it's just that bitcoin is 1 coin. And alts are 100s. Bitcoin is still an interest, but now it's competing with the thousands of fans in 100s of coins.
And most alts are unique, so each alt has a unique tech to bring to the table. Just reading up on their tech and updates on their tech is enough to generate more threads and posts than bitcoin news. And that's why it's not really possible for bitcoin to "win out" on bitcointalk anymore. It's not about popularity, it's just that the cumulative alt news just drowns out any bitcoin-related posts.