Could we (given elapsed time and stigma against the big A word), and should we continue an investigation on the Wow! signal, and send a response, despite not having confirmation?

I recently embarked on a bit of a rabbit hole dive on the Wow! signal (look it up if you are unfamiliar, i wasnt a month ago). There isnt much that is as captivating to me as this signal we received. I am definitely no physicist by any means, and thus have many gaps in knowledge. However despite the fact that we only received this signal once in history, on one antenna, not just, only one truss of the big ear, and never anything like it again it begs the question, why have we not followed up on this?

I understand that we continued to listen in that region of space upon learning of this signal for any repetition, however as it turned out, this signal never repeated. Given its specific properties, namely the frequency following the hydrogen line and being a highly narrow band signal, more so than what was able to be produced at the time, to me, that only justifies a greater effort to be put towards the investigation of this potentially ground breaking discovery.

Given we tend to prefer a second signal to confirm the signal, my main discussion question is why are we still just listening? Why have we not followed up? For this i explain, at least my hypothesised philosophy.

This signal was received only once, just once, for 72 seconds, in one of 2 large regions of space. What are the chances that, like humanity, should it be the big A, a signal was only sent once, like one signal, repeated briefly (which we happened to not detect), and never again, such as when we beamed signals in other regions of space? What if, like us, any extra terrestrial life also is only attempting to confirm and contact other extra terrestrials (including us), for the first time? It seems likely, to me at least philosophically that any other civilisation would send a signal to an exoplanet that is potentially habitable as their own way of confirming life, possibly after detecting a bio signature, or maybe they had just send a signal in a direction.

My point is what if the signal was from an extra terrestrial civilisation, that they were in a similar position we are in now, not 100% sure, attempting to make first contact. In that case, despite only receiving one signal, should we send identical signals to those regions of space, in order to confirm existence of receipt.

Should we do that, assuming it came from a star around the sagitarrious constellation, it would take around 500 years for another signal, if they received ours in about 250 years.

With our idea of keep listening to hear it again, I believe, should the signal be sent, much like how i described it, it would be unlikely a civilisation would send 2 signals more than 50 years apart in the same region of space in the hopes of a response, they would have to send a signal, wait 50 years and do it again, something we would never do.

That begs the question, why dont we just do it, whats the harm, given all we can gain?

(This is more for discussion, discuss away!)