Honestly, i have followed lots of twitter influencers and i can say that most of them are active during bull market and goes silent when the market is dull. you see post like btc pumping, lets go to the moon and so on whenever the market turns green. looks like most jump out from Nowhere to proclaim the BTC goodness. My opinion, if they failed to inform their followers and listeners to be careful and never to be greedy, then they are not truly crypto influencers. all they wanted to do is dump on their fallowers and move on.
My belief is that whatever goes up will surely comes down and btc and other crypto will correct sooner or later and we might wait for months again before another major outbreak like we are experiencing now. Do not go all out on BTC.
I do not trust anyone of them nor ever look towards their predictions, because they are doing so for their own benefits. For example, some of them gets paid to promote projects and will say all the good things, present the good interviews they had and so on, but most of them if not all of them, don't get paid in the project's token, so if you follow whatever review they made, that's up to you. On the other hand, the other class of influencers that jumps out during a green market should be avoided totally, because it is people like them that entices their followers into chasing the green market and when it dumps, they will remind you of the need to invest your spare and so on. If I can recall too, some of them also claims to experts and it is them that gave many predictions for several coins which never worked.
Therefore, I agree with you completely, know when to enter the market be it Bitcoin or other good coins, always invest what you can afford and if you must chase the moving market make sure to use a fund you can afford to lose, such that you can hold long term if it doesn't go as you planned.