No.
The nail must be rammed through the first time.
If nails are not available, substitute by writing a reply with a single, common letter shifted over a key.
The tildes has uses of which I happen to love and yet have yet to have employed.
It is particularly effective in altering the perceived tone of one's words, as demonstrated in the following example:
"You're a fuckwit and I'd like to have nothing to do with you, darling."
"You're a fuckwit and I'd like to have nothing to do with you, darling~"
The first instance maintains a tone of someone trying to keep up a formal tone with the "darling" while simultaneous putting their issue with the recipient of the insult bluntly.
The second's tone is significantly happier and additionally arrogant in the way that they don't even put on a tone of distaste with their insult, likely considering it barely worth their time to even bother insulting the recipient. It's also a hell of a lot creepier.
Let's examine a non-insulting example. A question, this time.
"Did you fix it yet?"
"Did you fix it yet?~"
The first one is very neutral in tone. Nothing odd about it.
The second one is, again, happier sounding, in a somewhat demeaning way, and this time, the way the tilde modulates the accenting of the sentence put more emphasis on the thing being fixed, making the person fixing it appear far less important. Again, significantly creepier, and in this case, uncomfortably personal in tone.
An imperative sentence, now.
"Do it, already."
"Do it, already~"
The first is blatantly impatient.
The second has a vastly different tone, one of the person giving the command egging the recipient on when the recipient obviously doesn't want to do it. Alternatively, it sounds like the commander has nothing to lose from the recipient carrying out the action while the recipient does. Not so much creepy as it is smug.
Before we move on to the final example, you said that tildes are not exclamation points, and I agree wholeheartedly with that. Tildes are meant to replace periods. Therefore, one can have an exclamation point followed by a tilde. This has been the case for a while now.
"I love it!"
"I love it!~"
The tilde does something abnormal to the other tilde-sentences here. Here, it makes more sincere and genuine the sentence, as well as making it more personal, adding an underlayer of the recipient being greatly thanked for their involvement in the scenario.
I'd like to finish by saying that true linguists embrace the changes to languages made over time, as language is an evolving creature, as majestic as it need be to fit the time.
That is all, darlings~