"Ree-Yees" wrote

Does anyone see any harm in taking something and patching that hole?
Maybe
some of that stick of epoxy crap would work.

That might indeed work. I've always had good luck just shooting a glob of
silicone sealer/caulk into minor stuff like that - especially if "looks"
doesn't factor into it and it's not real high pressure. For example, I have
a hole in the transom where a cable for a depth sounder (I think) went
through that just has a glob of silicone to patch it. It is below water
line, at least occasionally, and it is tight. If you think that there's a
chance in the future you might have to remove it, you can probably
scrape/drill/ream it out enough to get something through. If you get the
silicone deep into the hole or even through to the other side so it globs up
on both sides, unless there's real high pressure, that will probably be a
satisfactory, permanent fix. For welded boats, a caution is that if you
think a welded fix might be in the future, silicone can be very difficult
for the welder to clean off and therefore can prevent good weld. I don't
know how this would a apply to a fiberglass boat if a glued or glass fix is
possible in the future. This might be a vote in favor of your epoxy idea.

I've also seen holes on aluminum hull transoms semi-permanently closed
(semi- as compared to welding a patch; permanently in that they aren't a
temporary fix but intended to function indefinitely) with variations of a
bolt and nut with rubber and metal washers on each side (rubber inner/metal
outer). I have no idea if this is feasible on a wood/glass type boat.