Glad I could help.
Yeah, you're fine, that tank will hold fine. Your friend who told you to scrap it is just operating with an overabundance of caution, not necessarily a bad thing. But your tank will give good service.
If there is a sharp edge left, some careful sanding with 400 grit (or so, not critical) silicon carbide sandpaper will take away the sharp edge.
I really do like those frameless aquariums that are popular nowadays.
I'm starting up my own planted tank after a break, so I hope you'll stop by to offer me some advice, once I get it going!
Thanks, have a good one.
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