I reckon the chances of anyone paying any attention to you at the point where you're still in the nascent stage of your band's life are minimal to none, so there's a really only a limited amount of damage you could do.
By the time you're big enough for any kind of reputation to matter you'll be skilled and competent and can look back on any early stuff and laugh.
And for those few people who have tracked you throughout your career, well, they get the hipster points for being able to say, 'I remember when they played [insert small venue here] and they were terrible."
Which, of course, will only help persuade other people that you're good...
LOL! Earlier tonight, I was reading a thread in one of the SOS forums about "making it in the business" and some comments were made about bands who were actually good and getting some publicity, but when one of the band members got sick and couldn't finish the tour, nobody wanted to have anything to do with publicizing them and they basically became nothing.
Well, my thing is that I probably couldn't actually play any music I ever produce. Not only have I not had piano lessons since I was a preteen, and not only have I not even tried to continue learning how to play as an adult (I'm now 47), with a left hand that's partially numb and not as dexterous due to nerve damage in my neck and shoulder, the chances of my ever doing anything live is next to nothing. I do have a MIDI keyboard for twiddling around to find nice motifs or short tunes, but I must program them into a DAW's piano roll to actually turn it into music.
Though I can type 80 words per minute with 100% accuracy, I make a lot of mistakes and I have to use the backspace key a lot. Even with the backspacing, I still hit 80 WPM. With all the mistakes I make when typing, despite decades of daily typing, I can only suspect that any attempt to play music on a piano or keyboard would only result in lots and lots of mistakes on stage, and the piano/keyboard has no time-warping backspace key, unfortunately. lol
I love making music, however, even though I'm only getting started. If nothing else, and if there's no huge or recurring cost involved, I can just list some of the best completed tracks on iTunes or somewhere and just let people buy them if they want to, and if not, at least I still have my day job.
And if I get an extra hundred dollars a month here and there, I can at least order pizza more often.