Someone in an unrelated discussion, wrote on LinkedIn that blackberry was profitable and grew for a few years after iPhone was anounced. The same for blockbuster after Netflix came to business. Then he was asking on what technologies today will be obsolete because an iPhone has emerged. For me lemmy or mastodon although slow but slowly will eat the competitors as they develop.
For me I am still reading Reddit since lots of information is there. But I am avoiding on participating there.