Repeat any text as many times as you need: for test data at a realistic length, a chat bit, or filling a layout before the real copy arrives.
The legitimate uses are narrower than the tool suggests and worth naming. Filling a layout with realistic text length before the real copy exists. Generating test input at a specific size to check how a field behaves at its limit. Building a repeated separator or border for a plain-text document. Producing a block of identical rows to paste into a spreadsheet as a starting point for editing. In each case what you need is a precise count, which is why the separator and the numbering are both configurable rather than fixed.
New lines produce a stacked block, one copy per row, which is what a spreadsheet paste needs. A space produces a single flowing line that will wrap naturally in a paragraph. Nothing at all concatenates the copies into one unbroken string, which is how you build a repeated character rule or test how a field handles a long token with no break opportunity. Numbering each copy turns the output into an ordered list, useful when you are generating placeholder rows and need to tell them apart at a glance. The cap is a thousand copies, which is well past any practical field limit.
One thousand. That is beyond any normal field limit, and it keeps the page responsive. A much larger number would produce output no field would accept anyway.
Yes, with the numbering toggle. Each repeat is prefixed with its position, which makes generated placeholder rows distinguishable.
Very possibly, on any platform that filters for it. Repetition is fine for test data and layout filler, but posting it publicly is a good way to have a message hidden.